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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 38501. |
(A) : When a body is dropped from a height explodes in mid air, but its centre of mass keeps moving in vertically downward direction.(R ) : Explosion occur due to internal forces only. |
| Answer» <html><body><p>Both 'A' and '<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a>' and true and 'R' is the <a href="https://interviewquestions.tuteehub.com/tag/correct-409949" style="font-weight:bold;" target="_blank" title="Click to know more about CORRECT">CORRECT</a> <a href="https://interviewquestions.tuteehub.com/tag/explantation-2628194" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLANTATION">EXPLANTATION</a> of 'A'<br/>Both 'A' and 'R' and true and 'R' is notthe correct explantation of 'A'<br/>A' is true and 'R' is false<br/>A' is false and 'R' is true</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 38502. |
Condition for no deviation when light travels from one medium to another is a) angle of incidence is zero (b) refractive index of two media must be same |
| Answer» <html><body><p>a is only true<br/><a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a> is only true<br/>a &b are both false<br/>a & b are both true</p>Answer :D</body></html> | |
| 38503. |
A cyclinderical tank is open at the top and has cross sectional area a_1. Water is filled in it up to a height h. There is a hole of cross sectional area a_2 at its bottom. Given a_1=3a_2. iii. The time taken to empty the tank is |
| Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>((<a href="https://interviewquestions.tuteehub.com/tag/2h-300377" style="font-weight:bold;" target="_blank" title="Click to know more about 2H">2H</a>)/(<a href="https://interviewquestions.tuteehub.com/tag/g-1003017" style="font-weight:bold;" target="_blank" title="Click to know more about G">G</a>))`<br/>`4sqrt(h/g)`<br/>`6sqrt((2h)/(g))`<br/>`8sqrt((2h)/(g))`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 38504. |
Two metal spheres each of radius 'r' and made of same material are separated by a certain fixed distance or (d gt 2r) in a medium. The gravitational force between those spheres is proportional to |
| Answer» <html><body><p>`(1)/(<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a>^(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>))`<br/>`(1)/(r^(4))`<br/>`r^(4)`<br/>`r^(6)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :D</body></html> | |
| 38505. |
A cyclinderical tank is open at the top and has cross sectional area a_1. Water is filled in it up to a height h. There is a hole of cross sectional area a_2 at its bottom. Given a_1=3a_2. ii. The initially velocity with which the water emerges from the hole is |
| Answer» <html><body><p>`1/2sqrt(<a href="https://interviewquestions.tuteehub.com/tag/gh-468237" style="font-weight:bold;" target="_blank" title="Click to know more about GH">GH</a>)`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>(2gh)`<br/>`3/2sqrt(gh)`<br/>`2sqrt(2gh)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 38506. |
The resultant of two vectors is maximum when the angle between them is |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/zero-751093" style="font-weight:bold;" target="_blank" title="Click to know more about ZERO">ZERO</a><br/>`<a href="https://interviewquestions.tuteehub.com/tag/45-316951" style="font-weight:bold;" target="_blank" title="Click to know more about 45">45</a>^@`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/90-341351" style="font-weight:bold;" target="_blank" title="Click to know more about 90">90</a>^@`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/180-279527" style="font-weight:bold;" target="_blank" title="Click to know more about 180">180</a>^@`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html> | |
| 38507. |
A particle moves in the X-Y plane under the action of a force vec(F) such that the value of its linear momentum (vec(P)) at any time .t., and its components are P_(X) = 2 cos t, P_(Y) = 2 sin t. According to defination of force vec(F) = (d vec(P))/(dt) The angle .theta. between vec(F) and vec(P) at a given time .t. will be |
| Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/theta-1412757" style="font-weight:bold;" target="_blank" title="Click to know more about THETA">THETA</a> = 0^(@)`<br/>`theta = <a href="https://interviewquestions.tuteehub.com/tag/30-304807" style="font-weight:bold;" target="_blank" title="Click to know more about 30">30</a>^(@)`<br/>`theta = <a href="https://interviewquestions.tuteehub.com/tag/90-341351" style="font-weight:bold;" target="_blank" title="Click to know more about 90">90</a>^(@)`<br/>`theta = 180^(@)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 38508. |
A cyclinderical tank is open at the top and has cross sectional area a_1. Water is filled in it up to a height h. There is a hole of cross sectional area a_2 at its bottom. Given a_1=3a_2. i. The initially velocity with which the water falls in the tank is |
| Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>(2gh)`<br/>`sqrt(<a href="https://interviewquestions.tuteehub.com/tag/gh-468237" style="font-weight:bold;" target="_blank" title="Click to know more about GH">GH</a>)`<br/>`sqrt((gh)/(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>))`<br/>`1/2sqrt(gh)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :D</body></html> | |
| 38509. |
A particle moves in the X-Y plane under the action of a force vec(F) such that the value of its linear momentum (vec(P)) at any time .t., and its components are P_(X) = 2 cos t, P_(Y) = 2 sin t. According to defination of force vec(F) = (d vec(P))/(dt) The vector form vec(F) is |
| Answer» <html><body><p>`-2 sin t hat(i) + 2 cos t hat(<a href="https://interviewquestions.tuteehub.com/tag/j-520843" style="font-weight:bold;" target="_blank" title="Click to know more about J">J</a>)`<br/>`-2 sin t hat(i) - 2 cos t hat(j)`<br/>`+2 <a href="https://interviewquestions.tuteehub.com/tag/sint-2272597" style="font-weight:bold;" target="_blank" title="Click to know more about SINT">SINT</a> hat(i) + 2 cos t hat(j)`<br/>`+2 sin t hat(i) - 2 cos t hat(j)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html> | |
| 38510. |
The escape velocity of projectile on the surface of earth is 11.2 Kms^(-1). If a body is projected out with thrice of this speed , find the speed of the body far away from the earth . Ignore the presence of other planets and sun. |
| Answer» <html><body><p></p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/v-722631" style="font-weight:bold;" target="_blank" title="Click to know more about V">V</a>=<a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>(v_p^2-v_e^2)=sqrt((3V_e)^(2)-v_(e)^(2))=sqrt8xx11.2 = 31.68kms^(-1)`.</body></html> | |
| 38511. |
Young.s modulus of a wire is 2 xx 10^(11)N//m^(2). If a stress of 2 x 108 N/m2 is applied at the free end of a wire, find the strain in the wire. |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :`<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(-<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)`</body></html> | |
| 38512. |
The significant figure in 0.050 is |
| Answer» <html><body><p>1<br/>2<br/>3<br/>4</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 38513. |
To get the best possible true value of the quantity ……...…. has to be taken. |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/rms-1190227" style="font-weight:bold;" target="_blank" title="Click to know more about RMS">RMS</a> <a href="https://interviewquestions.tuteehub.com/tag/value-1442530" style="font-weight:bold;" target="_blank" title="Click to know more about VALUE">VALUE</a><br/>net value <br/><a href="https://interviewquestions.tuteehub.com/tag/arithmetic-15417" style="font-weight:bold;" target="_blank" title="Click to know more about ARITHMETIC">ARITHMETIC</a> <a href="https://interviewquestions.tuteehub.com/tag/mean-1091459" style="font-weight:bold;" target="_blank" title="Click to know more about MEAN">MEAN</a> <br/>Mode</p>Solution :arithmetic mean</body></html> | |
| 38514. |
A solid ball of mass m and radius r spinning with angular velocity omega falls on a horizontal slab of mass M with rough upper surface (coefficient of friction mu) and smooth lower surface. Immediately after collision the normal component of velocity of the ball remains half of its value just before collision and it stops spinning. Find the velocity of the sphere in horizontal direction immediately after the impact (given: Romega= 5). |
| Answer» <html><body><p><br/></p>Solution :`J=int N <a href="https://interviewquestions.tuteehub.com/tag/dt-960413" style="font-weight:bold;" target="_blank" title="Click to know more about DT">DT</a> =mv/<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a> -(-mv)=3/2,mv`………..i <br/> `muJR=intmu(N dt)<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a>=(2/5mR^(2)omega-0)=2/5mR^(2)omega`……..<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a> <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/BMS_VOL2_C03_E01_310_S01.png" width="80%"/> <br/> From eqn i and ii we get <br/> `3/2mv rmu=2/5mR^(2)omega`……….iii <br/>let `V` and `V_(1)` be the speeds of the plank and the sphere, respectively in the horizontal direction. <br/>`muJ=intmj Ndt=Mv=mV_1`........iv <br/> <a href="https://interviewquestions.tuteehub.com/tag/form-996208" style="font-weight:bold;" target="_blank" title="Click to know more about FORM">FORM</a> eqn i and iv `mu(3/2)mv=MV` <br/> `V=3/2(mumv)/M=3/2 4/15 (mRomega)/M=2/5Romega` <br/> and `V_(1)=2/5Romega=2m//s`</body></html> | |
| 38515. |
Select the incorrect statement from the following |
| Answer» <html><body><p>Rolling <a href="https://interviewquestions.tuteehub.com/tag/motion-1104108" style="font-weight:bold;" target="_blank" title="Click to know more about MOTION">MOTION</a> is the <a href="https://interviewquestions.tuteehub.com/tag/combination-922669" style="font-weight:bold;" target="_blank" title="Click to know more about COMBINATION">COMBINATION</a> of translational and rotation motion.<br/>In pure rolling the total kinetic <a href="https://interviewquestions.tuteehub.com/tag/energy-15288" style="font-weight:bold;" target="_blank" title="Click to know more about ENERGY">ENERGY</a> is the sum of kinetic <a href="https://interviewquestions.tuteehub.com/tag/energies-971455" style="font-weight:bold;" target="_blank" title="Click to know more about ENERGIES">ENERGIES</a> of translational and <a href="https://interviewquestions.tuteehub.com/tag/rotational-625601" style="font-weight:bold;" target="_blank" title="Click to know more about ROTATIONAL">ROTATIONAL</a> motion.<br/>In sliding translational motion is less than rotational motion.<br/>In slipping the rotational motion is more than translation motion.</p>Solution :In sliding the translation motion is more than rotaional motion.</body></html> | |
| 38516. |
A cubical block of density rho is floating on the surface of water .Out of its height L, fraction x is submerged in water . The vessel is in an elevator accelerating upward with acceleration a . What is the fraction immersed ? |
| Answer» <html><body><p></p>Solution :Let density of water is `rho_(w)`. A <a href="https://interviewquestions.tuteehub.com/tag/block-18865" style="font-weight:bold;" target="_blank" title="Click to know more about BLOCK">BLOCK</a> of height L float on it .x be the height of block submerged in water .<br/>Volume of block `V=L^(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)`<br/>Mass of block `m=Vrho=L^(3)rhog`<br/><a href="https://interviewquestions.tuteehub.com/tag/weight-1451304" style="font-weight:bold;" target="_blank" title="Click to know more about WEIGHT">WEIGHT</a> of the block `=mg=L^(3)rhog`<br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/KPK_AIO_PHY_XI_P2_C10_E04_015_S01.png" width="80%"/><br/>First Case : Volume ofpart of cube submerged in water `=xL^(2)`<br/> `therefore` Weight of water displaced by block `=xL^(2)rho_(w)<a href="https://interviewquestions.tuteehub.com/tag/g-1003017" style="font-weight:bold;" target="_blank" title="Click to know more about G">G</a>` <br/> Weight of block =weight of water displaced by block .<br/>`L^(3)rhog=xL^(2)rho_(w)g`<br/>`therefore(x)/(L)=(rho)/(rho_(w))`<br/>`thereforex=(rho)/(rho_(w))L`....(1)<br/>Second Case : When vessel is <a href="https://interviewquestions.tuteehub.com/tag/placed-591674" style="font-weight:bold;" target="_blank" title="Click to know more about PLACED">PLACED</a> in an elevator moving upward with acceleration a , then effective acceleration =g=(g+a)<br/>More acceleration a is due to Pseudo force <br/>`therefore` Weight of block =mg<br/>`=m(g+a)`<br/>Suppose , and elevator is moving upward .Let new fraction of block submerged in water is `x_(1)` <br/> For floating of block ,<br/>Weight of block =Weight of displaced water ,<br/>`L^(3)rho(g+a)=x_(1)L^(2)rho_(w)(g+a)`<br/>`therefore(x_(1))/(L)=(rho)/(rho_(w))`....(2)<br/>`x_(1)=(rho)/(rho_(w))*L`<br/>From equation (1)and (2) , <br/> `x=x_(1)`<br/>Hence , the fraction of the block submerged is independent of acceleration.</body></html> | |
| 38517. |
Odd one out………. |
| Answer» <html><body><p>strain<br/>refractive index<br/>numbers<br/><a href="https://interviewquestions.tuteehub.com/tag/stress-1229213" style="font-weight:bold;" target="_blank" title="Click to know more about STRESS">STRESS</a></p>Solution :stress</body></html> | |
| 38518. |
Givethe signconvention forQ and W. |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`{:("System gains <a href="https://interviewquestions.tuteehub.com/tag/heat-21102" style="font-weight:bold;" target="_blank" title="Click to know more about HEAT">HEAT</a>","Q is positive"),("System <a href="https://interviewquestions.tuteehub.com/tag/loses-1079374" style="font-weight:bold;" target="_blank" title="Click to know more about LOSES">LOSES</a> heat","Q is negative"),("<a href="https://interviewquestions.tuteehub.com/tag/work-20377" style="font-weight:bold;" target="_blank" title="Click to know more about WORK">WORK</a> <a href="https://interviewquestions.tuteehub.com/tag/done-2591742" style="font-weight:bold;" target="_blank" title="Click to know more about DONE">DONE</a> on the system","W is negative"),("Work done by the system","W is positive"):}`</body></html> | |
| 38519. |
The velocity of river grows in proportion to the distance from it's bank and reaches maximumvalue V_(0) in the middle. Near the banks the velocity is zero. A boat is driven perpendicular to river flow, speed of boat in still water is u ( width of river is w) |
| Answer» <html><body><p>time <a href="https://interviewquestions.tuteehub.com/tag/taken-659096" style="font-weight:bold;" target="_blank" title="Click to know more about TAKEN">TAKEN</a> to <a href="https://interviewquestions.tuteehub.com/tag/cross-939411" style="font-weight:bold;" target="_blank" title="Click to know more about CROSS">CROSS</a> river `<a href="https://interviewquestions.tuteehub.com/tag/w-729065" style="font-weight:bold;" target="_blank" title="Click to know more about W">W</a>/u`<br/>time taken to cross river `(w)/(sqrt((V_(0)^(2))/(4)+u^(2)))`<br/>Drift is `(V_(0)w)/(2u)`<br/>Drift is `(V_(0)w)/(u)`</p>Answer :A::C</body></html> | |
| 38520. |
Whena stone tied to the end ofa stringwhireled in a circular path the centripetal force is providedby the |
| Answer» <html><body><p>weight of the <a href="https://interviewquestions.tuteehub.com/tag/stone-1228007" style="font-weight:bold;" target="_blank" title="Click to know more about STONE">STONE</a> <br/>centrifugal force <br/>tension in the <a href="https://interviewquestions.tuteehub.com/tag/string-11290" style="font-weight:bold;" target="_blank" title="Click to know more about STRING">STRING</a> <br/>weight of the string </p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 38521. |
A body is acted upon by a number of external forces can it remain at rest |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :If thevectorsumof all theexternalforces <a href="https://interviewquestions.tuteehub.com/tag/iszero-2750609" style="font-weight:bold;" target="_blank" title="Click to know more about ISZERO">ISZERO</a>, <a href="https://interviewquestions.tuteehub.com/tag/thenthe-1409924" style="font-weight:bold;" target="_blank" title="Click to know more about THENTHE">THENTHE</a> bodywillremainat <a href="https://interviewquestions.tuteehub.com/tag/rest-11386" style="font-weight:bold;" target="_blank" title="Click to know more about REST">REST</a> .</body></html> | |
| 38522. |
A ship is moving towards east at 10km*h^(-1). A boat ismoving north of east making an angle of30^@ with the north. What should be the velocity of the boat so that the boat always appears, from the ship , to move towards north ? |
| Answer» <html><body><p></p>Solution :Let the velocity of the <a href="https://interviewquestions.tuteehub.com/tag/ship-1205430" style="font-weight:bold;" target="_blank" title="Click to know more about SHIP">SHIP</a> be `vecu=vec(OA)` and velocity of <a href="https://interviewquestions.tuteehub.com/tag/theboat-3192686" style="font-weight:bold;" target="_blank" title="Click to know more about THEBOAT">THEBOAT</a> be `vecv=vec(OB)` [Fig.2.43] <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/CHY_DMB_PHY_XI_P1_U02_C02_SLV_041_S01.png" width="80%"/><br/>Hence, the velocityof the boat with <a href="https://interviewquestions.tuteehub.com/tag/respect-1186739" style="font-weight:bold;" target="_blank" title="Click to know more about RESPECT">RESPECT</a> to the ship, <br/> `vecw=vecv-vecu=vec(AB)` <br/> From thefigure, <br/> `sin 30^@=u/v or, 1/2 =u/v` <br/> or, `v=2u=2xx10km*<a href="https://interviewquestions.tuteehub.com/tag/h-1014193" style="font-weight:bold;" target="_blank" title="Click to know more about H">H</a>^(-1) =20km*h^(-1)` [Given , `u=10km*h^(-1)`]</body></html> | |
| 38523. |
Figure 14.26 (a) shows a spring of force constant k clamped rigidly at one end and a mass m attached to its free end. A force F applied at the free end stretches the spring. Figure 14.26 (b) shows the same spring with both ends free and attached to a mass m at either end. Each end of the spring in Fig. 14.26(b) is stretched by the same force F. If the mass in Fig. (a) and the two masses in Fig. (b) are released, what is the period of oscillation in each case ? |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`T=2pisqrt(m/k)` for (a) and `2pisqrt(m/(<a href="https://interviewquestions.tuteehub.com/tag/2k-300402" style="font-weight:bold;" target="_blank" title="Click to know more about 2K">2K</a>))` for (<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>)</body></html> | |
| 38524. |
Zero errors of measuring instruments are called |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/indeterminate-499149" style="font-weight:bold;" target="_blank" title="Click to know more about INDETERMINATE">INDETERMINATE</a> errors<br/>Random errors<br/>Disproportional errors<br/>Instrumental errors</p>Answer :D</body></html> | |
| 38525. |
Figure 14.26 (a) shows a spring of force constant k clamped rigidly at one end and a mass m attached to its free end. A force F applied at the free end stretches the spring. Figure 14.26 (b) shows the same spring with both ends free and attached to a mass m at either end. Each end of the spring in Fig. 14.26(b) is stretched by the same force F. What is the maximum extension of the spring in the two cases ? |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :F/k for both (a) and (<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>).</body></html> | |
| 38526. |
Given 50^(@)F , 50^(@)Cand 50K arrange them in increasing order of temperature |
| Answer» <html><body><p>`50^(@)<a href="https://interviewquestions.tuteehub.com/tag/f-455800" style="font-weight:bold;" target="_blank" title="Click to know more about F">F</a>, 50^(<a href="https://interviewquestions.tuteehub.com/tag/0-251616" style="font-weight:bold;" target="_blank" title="Click to know more about 0">0</a>) <a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a> " &" 50`<a href="https://interviewquestions.tuteehub.com/tag/k-527196" style="font-weight:bold;" target="_blank" title="Click to know more about K">K</a><br/>50 K , `50^(@)C "&"50^(0) F`<br/>50 K, `50^(@)F " & " 50^(0) C `<br/>`50^(@)C, 50^(0) F " &" 50`K</p>Answer :C</body></html> | |
| 38527. |
A seconds pendulum is taken from the surface of the earth to that of the moon. In order to maintain the period constant |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/length-1071524" style="font-weight:bold;" target="_blank" title="Click to know more about LENGTH">LENGTH</a> of the <a href="https://interviewquestions.tuteehub.com/tag/pendulum-1149901" style="font-weight:bold;" target="_blank" title="Click to know more about PENDULUM">PENDULUM</a> has to be <a href="https://interviewquestions.tuteehub.com/tag/decreased-7266469" style="font-weight:bold;" target="_blank" title="Click to know more about DECREASED">DECREASED</a> <br/>Length of pendulum has to be <a href="https://interviewquestions.tuteehub.com/tag/increased-1040402" style="font-weight:bold;" target="_blank" title="Click to know more about INCREASED">INCREASED</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/amplitude-859568" style="font-weight:bold;" target="_blank" title="Click to know more about AMPLITUDE">AMPLITUDE</a> of the pendulum has to be increased <br/>Amplitude of the pendulum has to be decreased</p>Answer :A</body></html> | |
| 38528. |
A balloon from rest accelerates uniformly upward with 'a' ms^(-2), for t seconds of time. A stone is released from the balloon. Now, read the following statements to pick the right ones. a) The stone's initial velocity is zero, relative to balloon b) The stone's initial velocity is nonzero, relative to earth c) The time taken to reach the ground from the balloon's frame of reference is inversely proportional to sqrt((a+g)). d) The time take to reach the ground from earth's frame of reference is directly proportional to sqrt((a+g)). |
| Answer» <html><body><p>a, <a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>, <a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a> <br/>a, c, d<br/>a, b, d<br/>a, c</p>Answer :A</body></html> | |
| 38529. |
A tube 2m long and closed at on e end is half filled with mercury and is then inverted with its open end just dipping into a mercury trogy. Find the height of mercury which will stand in the tube if the reading of the barometer is o.75 m. [hint: P_(1) = 0.765,V_(1)= 1 propm^(3), P_(2)=(3//4-x),V_(2)= (2-x)prop m^(3),use p_(1)V_(2)=P_(2)V_(2).] |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/3cm-310901" style="font-weight:bold;" target="_blank" title="Click to know more about 3CM">3CM</a></body></html> | |
| 38530. |
A closed copper vessel contains water equal to half of its volume. When the temperature of the vessel is raised to 447°C, the pressure of the steam in the vessel is (treat stream as an ideal gas, R=8310 "JK"^(-1)//kg mole, density of water = 1000 "kgm"^(-5) molecular weight of water= 18 ) |
| Answer» <html><body><p>`33.24 <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> <a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(<a href="https://interviewquestions.tuteehub.com/tag/7-332378" style="font-weight:bold;" target="_blank" title="Click to know more about 7">7</a>)` <a href="https://interviewquestions.tuteehub.com/tag/pa-1145246" style="font-weight:bold;" target="_blank" title="Click to know more about PA">PA</a><br/>`16.62 xx 10^(7)` Pa<br/>`10.31 xx 10^(7)` Pa<br/>`8.31 xx10^(7)` Pa</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 38531. |
A: The stretching of a coil is determined by the shear modulus. R: Share modulus change only shape of a body keeping its volume unchanged. |
| Answer» <html><body><p>Both are <a href="https://interviewquestions.tuteehub.com/tag/true-713260" style="font-weight:bold;" target="_blank" title="Click to know more about TRUE">TRUE</a> and the <a href="https://interviewquestions.tuteehub.com/tag/reason-620214" style="font-weight:bold;" target="_blank" title="Click to know more about REASON">REASON</a> is the <a href="https://interviewquestions.tuteehub.com/tag/correct-409949" style="font-weight:bold;" target="_blank" title="Click to know more about CORRECT">CORRECT</a> <a href="https://interviewquestions.tuteehub.com/tag/explanation-455162" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLANATION">EXPLANATION</a> of the <a href="https://interviewquestions.tuteehub.com/tag/assertion-384238" style="font-weight:bold;" target="_blank" title="Click to know more about ASSERTION">ASSERTION</a>.<br/>Both are true but the reason is not correct explanation of the assertion.<br/>Assertion is true, but the reason is false.<br/>Both assertion and reason are false.</p>Solution :Both assertion and reason are correct.</body></html> | |
| 38532. |
Given |vec(A)_(1)| =2, |vec(A)_(2)|=3 and |vec(A)_(1) + vec(A)_(2)| =3. If the value of |(vec(A)_(1) + 2 vec(A)_(2)). (3vec(A)_(1) -4 vec(A)_(2))| " is " 4^(n) find n |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a></body></html> | |
| 38533. |
A light rod of length 2 m is suspended from the ceiling horizontally by mean.s of two vertical wires of equal length tied to its ends. One of the wires is made of steel and is of cross-section 10^(-3)m^(2) and the other is of brass of cross -section 2xx10^(-3)m^(2). Find out the position along of corss-section 2xx10^(-3)m^(2). Find out the position along the rod at which a weight may be hung to produce,(i) equal stress in bothwires (ii) equal strains in both wires Young.s modulus of brass =1xx10^(11)N//m^(2) Young.s modulus of steel =2xx10^(11)N//m^(2) |
| Answer» <html><body><p></p>Solution :Suppose `a_(1) and a_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)` are the corss - sectional areas, and `Y_(1) and Y_(2)` are the Young.s <a href="https://interviewquestions.tuteehub.com/tag/moduli-1100090" style="font-weight:bold;" target="_blank" title="Click to know more about MODULI">MODULI</a> of steel and brass wirerespectively. Let `T_(1) and T_(2)` are tensions in the steel and brass wires respectively. <br/> Let x is distance of the position of the hanging weight from the steel wire.<br/> (i) First case : For <a href="https://interviewquestions.tuteehub.com/tag/equal-446400" style="font-weight:bold;" target="_blank" title="Click to know more about EQUAL">EQUAL</a> stress in both wires, wehave <br/> `(T_(1))/(a_(1))=(T_(2))/(a_(2)) (or) (T_(1))/(10^(-3))=(T_(2))/(2xx10^(-3))(or) T_(2)=2T_(1)""......(i)` <br/> As the whole system is in equilibrium, so `Sigma bartau=0`. <br/> Taking moment of all the forces acting on the rod about C, <br/> we have `T_(1)x-T_(2)(2-x)=0""...( ii)` <br/> Solving equations (i) and (ii), we get `x=(4)/(3)m` <br/> (ii) Second case: For equal <a href="https://interviewquestions.tuteehub.com/tag/strains-1228702" style="font-weight:bold;" target="_blank" title="Click to know more about STRAINS">STRAINS</a> in both the wires `e_(1)=e_(2)` <br/> `(T_(1)l)/(a_(1)Y_(1))=(T_(2)l)/(a_(2)Y_(2))(or) (T_(1))/(10^(-3) xx 2xx10^(11))=(T_(2))/(2xx10^(-3)xx10^(11))`<br/> (or) `T_(1)=T_(2)""...(iii)`<br/> From equations (ii) and (iii), we get x = <a href="https://interviewquestions.tuteehub.com/tag/1m-283006" style="font-weight:bold;" target="_blank" title="Click to know more about 1M">1M</a></body></html> | |
| 38534. |
Two satellites of masses m_(1) and m_(2) (m_(1) gt m_(2)) are revolving the earth in circular orbits of radius r_(1) and r_(2)(r_(1) gt r_(2)) respectively. Which of the following statement is true regarding their velocities v_(1) and v_(2). |
| Answer» <html><body><p>`v_(<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>) = v_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)`<br/>`v_(1) lt v_(2)`<br/>`v_(1) <a href="https://interviewquestions.tuteehub.com/tag/gt-1013864" style="font-weight:bold;" target="_blank" title="Click to know more about GT">GT</a> v_(2)`<br/>`(v_(1))/(r_(1)) = (v_(2))/(r_(2))`</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 38535. |
The escape velocity of projectile on the surface of earth is 11.2 Kms^(-1). If a body is projected out with thrice of this speed, find the speed of the body far away from the earth. Ignore the presence of other planets and sun. |
| Answer» <html><body><p></p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/v-722631" style="font-weight:bold;" target="_blank" title="Click to know more about V">V</a> = sqrt(v_(p)^(2) - v_(e)^(2)) = sqrt((3V_(e))^(2) - v_(<a href="https://interviewquestions.tuteehub.com/tag/g-1003017" style="font-weight:bold;" target="_blank" title="Click to know more about G">G</a>)^(2))` <br/> `= sqrt(8 <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> 11.2) = 31.68 kms^(-1)`.</body></html> | |
| 38536. |
The equation of motion of a particle is x= a cos (alpha t)^(2). The motion is……….. |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/periodic-598580" style="font-weight:bold;" target="_blank" title="Click to know more about PERIODIC">PERIODIC</a> but not <a href="https://interviewquestions.tuteehub.com/tag/oscillatory-2208020" style="font-weight:bold;" target="_blank" title="Click to know more about OSCILLATORY">OSCILLATORY</a><br/>periodic and oscillatory<br/>oscillatory but not periodic<br/>neither periodic nor oscillatory</p>Solution :The equation of motion of a particle is `<a href="https://interviewquestions.tuteehub.com/tag/x-746616" style="font-weight:bold;" target="_blank" title="Click to know more about X">X</a>= a <a href="https://interviewquestions.tuteehub.com/tag/cos-935872" style="font-weight:bold;" target="_blank" title="Click to know more about COS">COS</a> (alpha t)^(2)` is a cosine function hence, motion is oscillatory. <br/> Now putting `t+T` <a href="https://interviewquestions.tuteehub.com/tag/instead-516622" style="font-weight:bold;" target="_blank" title="Click to know more about INSTEAD">INSTEAD</a> of t, <br/> `x(t+T)= a cos [alpha (t+T)^(2)]""[therefore x(t) = a cos (alpha t)^(2)]` <br/> `=a cos [alpha t^(2) + alphaT^(2) +2 alpha t T] ne x(t)` <br/> where, T is a period of the function `omega (t)` <br/> Hence given motion is oscillatory but not periodic.</body></html> | |
| 38537. |
A system X is neither in thermal equilibrium with Y nor with Z. The system Y and Z |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/must-2185568" style="font-weight:bold;" target="_blank" title="Click to know more about MUST">MUST</a> be in <a href="https://interviewquestions.tuteehub.com/tag/thermal-706916" style="font-weight:bold;" target="_blank" title="Click to know more about THERMAL">THERMAL</a> equilibrium<br/>Cannot be in thermal equilibrium<br/>May be in thermal equilibrium<br/>None of the above <a href="https://interviewquestions.tuteehub.com/tag/statements-17642" style="font-weight:bold;" target="_blank" title="Click to know more about STATEMENTS">STATEMENTS</a> are correct</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 38538. |
A vertical cylinder of height 100cm contains air at a constant temperature and its top is closed by a frictionless piston at atmospheric pressure (76 cm of Hg) as shown figure - a. If mercury is slowly poured on the piston, due to its weight air is compressed. Find the maximum height of the mercury column which can be put on the piston. |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :When <a href="https://interviewquestions.tuteehub.com/tag/mercury-558950" style="font-weight:bold;" target="_blank" title="Click to know more about MERCURY">MERCURY</a> is poured on the top of the piston, due to increase in pressure, the volume of air will <a href="https://interviewquestions.tuteehub.com/tag/decrease-946104" style="font-weight:bold;" target="_blank" title="Click to know more about DECREASE">DECREASE</a>. <br/> If final mercury column of height x is poured on the piston then gas pressure in <a href="https://interviewquestions.tuteehub.com/tag/equilibrium-974342" style="font-weight:bold;" target="_blank" title="Click to know more about EQUILIBRIUM">EQUILIBRIUM</a> can be given as `P_(f)=(76+x)` cm of Hg <br/> As atmospheric pressure is equivalent to the pressure due to a mercury column of height 76 cm. If A be the area of cross section of cylinder then we have according to Boyle.s <a href="https://interviewquestions.tuteehub.com/tag/law-184" style="font-weight:bold;" target="_blank" title="Click to know more about LAW">LAW</a> <br/> `P_(1)V_(1)=P_(2)V_(2)" or "(76 cm)(100A)=(76+x)(100-x)A" (or) "7600=7600+24x-x^(2)" (or) "x=24cm`</body></html> | |
| 38539. |
What is the Boltzmann's constant? Give its value. |
| Answer» <html><body><p></p>Solution :Boltzmann.s constant is <a href="https://interviewquestions.tuteehub.com/tag/defined-947013" style="font-weight:bold;" target="_blank" title="Click to know more about DEFINED">DEFINED</a> as the gas constant per molecules. <br/> `k_(B)=(R)/(N_(A))=<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>.38 xx 10^(-<a href="https://interviewquestions.tuteehub.com/tag/23-294845" style="font-weight:bold;" target="_blank" title="Click to know more about 23">23</a>) JK^(-1)`</body></html> | |
| 38540. |
Can you cite a situation where no force acts on a body. |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :No. Atlest <a href="https://interviewquestions.tuteehub.com/tag/one-585732" style="font-weight:bold;" target="_blank" title="Click to know more about ONE">ONE</a> <a href="https://interviewquestions.tuteehub.com/tag/force-22342" style="font-weight:bold;" target="_blank" title="Click to know more about FORCE">FORCE</a>- theforceof gravitymustacton <a href="https://interviewquestions.tuteehub.com/tag/thebody-1403292" style="font-weight:bold;" target="_blank" title="Click to know more about THEBODY">THEBODY</a>. Onecancitemanyexamplewhereforceon thebody <a href="https://interviewquestions.tuteehub.com/tag/iszero-2750609" style="font-weight:bold;" target="_blank" title="Click to know more about ISZERO">ISZERO</a> .</body></html> | |
| 38541. |
Calculate the angle of (a) 1^(@) (degree) (b) 1' (minute of arc or arcmin) and ("c") 1" (second of arc or arc second ) in radians. Use 360^(@) = 2pi rad, 1^(@)=60' and 1'=60". |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :(a)We know that, <br/> `<a href="https://interviewquestions.tuteehub.com/tag/180-279527" style="font-weight:bold;" target="_blank" title="Click to know more about 180">180</a>^(@)= <a href="https://interviewquestions.tuteehub.com/tag/pi-600185" style="font-weight:bold;" target="_blank" title="Click to know more about PI">PI</a>` rad <br/> then `1^(@)=(?)` <br/> `:.1^(@)=(pi)/(180)=(3.412)/(180)` <br/>`:.1^(@)=0.01745` <br/> `:.1^(@)~~1.745xx10^(-<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)` rad <br/> (b) We know that, <br/> `60.(min)=1^(@)` <br/> and `1^(@)=1.745xx10^(-2)` rad <br/> `:.60.=1.745xx10^(-2)` rad <br/> `:. 60.=1.745xx10^(-2)` and <br/> then `1.=(?)` <br/> `1=(1.745xx10^(-2))/(60)=0.02908xx10^(-2)` <br/> `:.1=2.91xx10^(-4)` rad <br/> We know that, <br/> `60..(sec)=1.(min)` <br/> `and 1.(min)=2.908xx10^(-4)` rad <br/> `:. 60..=2.908xx10^(-4)` rad <br/> then `1,,=(?)` <br/> `I..=(2.908xx10^(-4))/(60)=0.048466xx10^(-4)` <br/> `:.1..~~4.85xx10^(-6)` rad</body></html> | |
| 38542. |
Which one of the following physical quantities cannot be represented by a scalar? |
| Answer» <html><body><p>mass<br/>length<br/><a href="https://interviewquestions.tuteehub.com/tag/momentum-1100588" style="font-weight:bold;" target="_blank" title="Click to know more about MOMENTUM">MOMENTUM</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/magnitude-1083080" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNITUDE">MAGNITUDE</a> of acceleration</p>Solution :momentum</body></html> | |
| 38543. |
In deriving Bernoulli's equation , we equated the work done on the fluid in the tube to its change in the potential and kinetic energy. (a) What is the largest average velocity of blood flow in an artery ofdiameter 2xx10^(-3)m ifthe flow must remain laminar ? (b)Do thedissipative forcebecome more important as the fluid velocity increases ?Discuss quanlitatively . |
| Answer» <html><body><p></p>Solution :Diameter of artery `d=<a href="https://interviewquestions.tuteehub.com/tag/2xx10-1840192" style="font-weight:bold;" target="_blank" title="Click to know more about 2XX10">2XX10</a>^(-3)m`<br/>The coefficient of viscosity of blood `eta=2.084xx10^(-3)`PaS<br/>Density of blood `rho=1.06xx10^(3)kg//m^(3)`<br/><a href="https://interviewquestions.tuteehub.com/tag/suppose-656311" style="font-weight:bold;" target="_blank" title="Click to know more about SUPPOSE">SUPPOSE</a> , Reynold.s numberfor <a href="https://interviewquestions.tuteehub.com/tag/linear-1074458" style="font-weight:bold;" target="_blank" title="Click to know more about LINEAR">LINEAR</a> flow , <br/>`R_(e)=2000`<br/>Maximum average velocityof blood,<br/>`v_("avg")=(R_(e)eta)/(rhoD)=(2000xx2.084)/(1.06xx10^(3)xx4xx10^(-3))`<br/>`=0.98m//s`<br/> (b)Volume of fluid passing per second, `Q=av_("arg")`<br/>`=(pi^(r2))v_("avg")`<br/>`=(22)/(7)xx(2xx10^(-3))^(2)xx0.98`<br/>`=1.23xx10^(-<a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a>)m^(3)s^(-1)`<br/>As per fluidvelocity increases , the dissipative forces become more important . This is because of the rise of turbulence . Turbulent flow causes dissipative loss in a fluid.</body></html> | |
| 38544. |
(A) Dispersion of light occurs, because velocity of light in a material depends upon its colour. ( R) the dispersion power depends only upon the material of the prism, but not upon the refracting angle of the prism. |
| Answer» <html><body><p>Both A and <a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a> are <a href="https://interviewquestions.tuteehub.com/tag/true-713260" style="font-weight:bold;" target="_blank" title="Click to know more about TRUE">TRUE</a> and R is the correct explanation of A<br/>Both A and R are true and R is not the correct explanation of A<br/>A is true and R is false<br/>Both A and R is false</p>Answer :B</body></html> | |
| 38545. |
(A): When two bodies of equal masses collide, their velocities are always interchanged. (R ): Momentum is conserved in any collision |
| Answer» <html><body><p>Both 'A' and '<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a>' are <a href="https://interviewquestions.tuteehub.com/tag/true-713260" style="font-weight:bold;" target="_blank" title="Click to know more about TRUE">TRUE</a> and 'R' is the correct <a href="https://interviewquestions.tuteehub.com/tag/explanation-455162" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLANATION">EXPLANATION</a> of 'A's<br/>Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A's<br/>A' is true and 'R ' is false<br/>A' is false and 'R' is true</p>Answer :D</body></html> | |
| 38546. |
The internal energy of a system remains constant when it undergoes a) Cyclic process b) an Isothermal process c) Any process in which heat given out by the system is equal to work done on the system |
| Answer» <html><body><p>both a and <a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a> are <a href="https://interviewquestions.tuteehub.com/tag/correct-409949" style="font-weight:bold;" target="_blank" title="Click to know more about CORRECT">CORRECT</a> <br/>both b and <a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a> are correct <br/>both a and c are correct <br/>a,b.c are <a href="https://interviewquestions.tuteehub.com/tag/true-713260" style="font-weight:bold;" target="_blank" title="Click to know more about TRUE">TRUE</a> </p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :D</body></html> | |
| 38547. |
Rain, pouring down at an angle alphawith the vertical has a speed of 10 m/s. A girl runs against the rain with a speed of 8 m/s and sees that the rain makes an angle betawith the vertical, then relation between alpha and beta |
| Answer» <html><body><p>`tan beta = (8+<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a> sin <a href="https://interviewquestions.tuteehub.com/tag/alpha-858274" style="font-weight:bold;" target="_blank" title="Click to know more about ALPHA">ALPHA</a>)/(10 cos alpha)` <br/>`tan beta = (8+10 cos alpha)/(10 sin alpha)` <br/>`tan beta = (10 sin alpha)/(8+10 cos alpha)` <br/>`tan beta = (<a href="https://interviewquestions.tuteehub.com/tag/10cos-1774304" style="font-weight:bold;" target="_blank" title="Click to know more about 10COS">10COS</a> alpha)/(8+10 sin alpha)` </p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html> | |
| 38548. |
A vehicle of mass is moving on a rough horizontal road with kinetic energy 'E'. If the coefficient of friction between the tyres and the road be mu, find the stopping distance |
| Answer» <html><body><p> </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`<a href="https://interviewquestions.tuteehub.com/tag/e-444102" style="font-weight:bold;" target="_blank" title="Click to know more about E">E</a>/(<a href="https://interviewquestions.tuteehub.com/tag/mumg-3733659" style="font-weight:bold;" target="_blank" title="Click to know more about MUMG">MUMG</a>)`</body></html> | |
| 38549. |
A square plate of side 15 cm. is floating on the surface of water. It the surface tension of water is 60 dyne/cm., the excess force applied to separate this plate from water will be |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/600-329515" style="font-weight:bold;" target="_blank" title="Click to know more about 600">600</a> dyne<br/>1600 dyne<br/>3600 dyne<br/>360 dyne</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 38550. |
Pressure P, volume V and temperature T of a certain material are related byP = (alpha T^2)/(V).Here, alphais aconstant. Work done by the material when temperature changes from T_0 to 2T_0while pressure remains constant is |
| Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/6-327005" style="font-weight:bold;" target="_blank" title="Click to know more about 6">6</a> <a href="https://interviewquestions.tuteehub.com/tag/alpha-858274" style="font-weight:bold;" target="_blank" title="Click to know more about ALPHA">ALPHA</a> T_0^<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>` <br/>`3/<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a> alpha T_0^2` <br/>`2 alpha T_0^2` <br/>`3 alpha T_0^2` </p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :D</body></html> | |