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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 10301. |
M5NFYFTD |
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| 10302. |
What is the value of cos 150and sin 210 |
| Answer» Cos 150= cos(180x1-30)= cos(-30) =cos 30= √3/2 so the value of cos 150 is √3/2Similarly,Sin210 =sin(180x1+30)=sin30=1/2 so the value of sin210 is 1/2 | |
| 10303. |
Y=tan X |
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Answer» I think here differentiation will be use.. dy/dxd(tanx)/dx= sec squarex What is your question?? |
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| 10304. |
Sadish adish |
| Answer» Sadish adish | |
| 10305. |
Derivation of equation of motion by calculus mrthod |
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Answer» Hlo Ayush yeh 11th mein bhee hain jo tum bol rhey ho k 12th me padni hai Hii Claculas 12th me padni hai kyn itna pagal bn rehe ho phele 11 kr phir baad me sochna |
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| 10306. |
Derived first equation of motion.. |
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Answer» Kyu youtube se kya problem h... Dekh lo usi pr..... Time bachega..... Help kro yaar ni toh hmm you tube ni jaye Yaha pr explain karna to thoda difficult h.... Pls aap ek baar youtube pr iski video dekh li... Jaldi or achche se samajh aayegi...... |
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| 10307. |
The acceleration of a projectile at its maximum height is |
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Answer» O G, 0, maximum, minimum |
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| 10308. |
The time of flight of an upward incined plane depends upon |
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Answer» Where u is velocity i.e. Vx=uAnd sin thita = angle g = gravity Time of flight = 2time of maximum height = 2 u sin thita ------------------- g Angle Angle of projection, angle of inclination , air resistance, a and b both |
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| 10309. |
Set paper |
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| 10310. |
What is the dimension of work done |
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Answer» [ML²T^-2] M\'L"T-" ML2T-2 ML²T-² |
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| 10311. |
X^5+X^3+10 find diffriction |
| Answer» Is it differentiation??? If it is then ans would be 5x^4+3x^2 when differentiated w.r.t dx | |
| 10312. |
Calculate the angle of:(A)1°(B)1\'(C)1" in radians.Use360°=2πrad, 1°=60\' and 1\'=60" |
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| 10313. |
List the derivations of kinematics . |
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| 10314. |
Ohm law derivation |
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| 10315. |
What is the question paper pattern this year according to cbse??????? |
| Answer» You can check the marking scheme here :\xa0https://mycbseguide.com/cbse-syllabus.html | |
| 10316. |
F is directly proption to delta p delta t prove |
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| 10317. |
1part.ans. |
| Answer» You can check NCERT Solutions here :\xa0https://mycbseguide.com/ncert-solutions.html | |
| 10318. |
What is mechanics |
| Answer» It is the study of motion | |
| 10319. |
Sir is 30marks for internal for whole year and 70 marks for final or other thing |
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Answer» No 30 marks for practical and 20 marks for sub enrichment Yes |
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| 10320. |
Which equation is postion time equation |
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Answer» S = ut + at^2 s = ut + 1/2 at squarë Newton second law of motion |
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| 10321. |
Name a physical quantity having magnitude and direection and which is not vector. |
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Answer» Stron It may be Electric current It may be Work What?????????? |
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| 10322. |
Hello friends What is projectile motion. Explain |
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Answer» When object under effect gravity of motion are called projectile motion When a object is thrown in space with a velocity & gravity force also act on it. When an object Travels some distance in horizontal line from the surface of Earth and making the circular path under the action of gravity only projectile motion |
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| 10323. |
Relation between maximum velocity and angel |
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| 10324. |
Calculate the range of force for which body will not move |
| Answer» Body will not move without overcoming limiting friction | |
| 10325. |
Explain partical application of capillarity |
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| 10326. |
When an alpin is held and pressed between finger the point hurts why? |
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| 10327. |
write a cause of rolling friction |
| Answer» Rolling friction is caused due to the movement of wheels on any surface | |
| 10328. |
si unit of distance |
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Answer» SI unit of distance is metre and CGS is centimetre Metre Metre |
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| 10329. |
How to convert tan 27 and the steps |
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| 10330. |
Explain why a body is wightless during a free fall? |
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Answer» Because Acceleration due to gravity is independent of mass of bodies The body isweightless during the free fall as there is no external contact force pushing or pulling upon their body. In each case, gravity is the only force acting upon the body |
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| 10331. |
Explain unit vectors in 2 dimension coordinate system? |
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| 10332. |
A daily intake of human adult is 10^7 joule then convert it into killo kelvin |
| Answer» Bhena joule energy ki unit hoti h or kelvin temperature ki dono me difference h | |
| 10333. |
Fundamental units |
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Answer» Fundamentak units are those units which are not usually defined in terms of dervied quantites and are independent? MLT where m is mass, .,.......,................ Ok The fundamental units are not defined in terms of other quantities as they are independent of each other.That\'s why they are known as Base or fundamental quantities or units. |
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| 10334. |
Describe the motion of a car in circular plane path |
| Answer» R- mg =0 , R= mg bcoz of no accln... Then motion of moving car mv^2/r <= FMax velocity =√mu s rg... | |
| 10335. |
Describe motion in a circular path |
| Answer» Circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. Since the object\'s velocity vector is constantly changing direction, the moving object is undergoing acceleration by a centripetal force in the direction of the center of rotation.Examples of circular motion include: an artificial satellite orbiting the Earth at a constant height, a ceiling fan\'s blades rotating around a hub. | |
| 10336. |
Find the centre of mass of two identical particles |
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Answer» Or if you want it in derived manner then let me know Y=M1Y1+M2Y2.../M1+M2+.... X=M1X1+M2X2....../M1+M2..... |
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| 10337. |
How zero error occur in clock |
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| 10338. |
What is the formula of moment of inertia |
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Answer» In General form Moment of Inertia is expressed as:\xa0I = mr2\xa0and, Integral form:\xa0I = ∫dI = ∫[0→M] r2 dm⇒ The dimensional formula of the moment of inertia is given by, M1\xa0L2\xa0T0.The role of the moment of inertia is the same as the role of mass in linear motion. It is the measurement of the resistance of a body to a change in its rotational motion. It is constant for a particular rigid frame and a specific axis of rotation.Moment of inertia,\xa0I = ∑mi ri2. . . . . . . (1)Kinetic Energy,\xa0K =\xa0½ I ω2 . . . . . . . . . (2) I=mr×r |
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| 10339. |
Light yeare unit is........ |
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Answer» Its miter m/s Distance |
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| 10340. |
Formula for potential energy of spring |
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Answer» K= f/x K=f/x |
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| 10341. |
What is the unit of light year |
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Answer» Light year (ly) 1(ly) = 9.467×10^15m Distance is the unit of light year Seconds |
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| 10342. |
In racing events motor racers bend on their knee to take turn? Why? |
| Answer» As circular path requires centripital force,in absence of it the bike skids outwards,in order to avoid skidding the racers bend their knees | |
| 10343. |
Integration xe-×dx |
| Answer» xEX+1/x+1 | |
| 10344. |
Prove that newton\'s 2nd law of motion is the real law... |
| Answer» Newton 2nd law of the motion is real law because with the help of it we can proof 1st as well as 3rd law of motion | |
| 10345. |
What is concurrent vector |
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Answer» A\xa0concurrent vector system is a set of two or more vectors whose lines of action intersect at a point. It is not necessary for all or any of the vectors to be actually in contact with the common point. Loda |
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| 10346. |
Motion of car on level and banked road theorem |
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| 10347. |
If a1=4m2 ,a2= 2m2, h= 6m find the rate of flow |
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| 10348. |
v=ue-kt |
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| 10349. |
What is polar form of vector? |
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| 10350. |
What is Aristotle fallacy? |
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Answer» The truth of the conclusions of an argument does not determine whether the argument is a fallacy - it is the argument which is fallacious. The Greek thinker Aristotle held the view that if a body is moving, some external force is required to keep it moving. This is called Aristotle\'s Fallacy. According to Aristotle fallacy, an external force is required to keep a body in uniform motion. |
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