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InterviewSolution
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.
| 4401. |
Angular momentum |
| Answer» The property of any rotating object given by moment of inertia times angular velocity.It is the property of a rotating body given by the product of the moment of inertia and the angular velocity of the rotating object. It is a vector quantity, which implies that here along with magnitude, direction is also considered. | |
| 4402. |
Physics is a....... |
| Answer» Sir dard and a pill full of pressure and tension.<br>I don\'t mean these<br>Science of matter and its motion | |
| 4403. |
Bernoulli\'s principle definition and derivation |
| Answer» P+density.g.h +1/2.density.v^2== constant<br>The sum of pressure,pottential and kinetic energy is constant | |
| 4404. |
Fill up 3.0 m/s2=_______km/hr2 |
| Answer» 0.8 something | |
| 4405. |
Anyone from ssm? |
| Answer» What is ssm | |
| 4406. |
Class11physics year2018 final exam question paper |
| Answer» Plz check on google | |
| 4407. |
Cbse 2013. 14 solutions sample paper |
| Answer» | |
| 4408. |
What is conservative force? |
| Answer» It depend upon initial and final position, not path followed by body. Eg. Gravitational force.<br>Work done by force in a complete cycle is 0,then it is conservative force.<br>Force which is independent of path followed by body<br>It is indepemdent on path | |
| 4409. |
D define Pascal\'s law |
| Answer» The pressure of fluid is constant at aal point in fluid<br>It states that pressure is equal at all points | |
| 4410. |
What is the maximum and minimum value of vector a+b and vector a-b |
| Answer» Hlo<br>Jlo<br>????<br>I don\'t know | |
| 4411. |
what is tersholli law?explain in detail |
| Answer» P°+density*g*h+(1/2)density*v²=p°+(1/2)* density *v²and using equation of continuity v=√2gh<br>Velocity of effux is also know an torricles lowIn thisIt states that the velocity of fluid whuch exict throw a orific is an equal to the Velocity of body faaling under free faaling motion | |
| 4412. |
To derive newton 1st law and 3rd law using 2nd law of newton? |
| Answer» Cundider to boll collide with each other A and B than force on A F=dp/dt and force on 2nd boll is. dp•/dt• . Now add both the equation F¹+F² =dp¹/dt+dp²/dt.. now take 1/dt(p¹+p²)and by momentum cunservation p¹+p²=0 so F¹+F²=o and F²=-F¹ hence proved<br>F=ma and we know that if v is constant than than a= o so F = o and it verify newton 1st low no external force aplide on that body | |
| 4413. |
State the Laws of Vibration of Stretched Stings. |
| Answer» | |
| 4414. |
A body is executing shm in a tunnel dig inside the earth passing through its centre. |
| Answer» | |
| 4415. |
Why steel is more elastic than rubber ? |
| Answer» Because of yield point of steel is greater than the rubber<br>You must have seen stress strain graph.When on applying very low stress the strain is very much in case of rubber. Practically also u need very small force to strech a rubber. But it breaks easily that means it doesn\'t posses much plasticity.While need a lot of force to strech a steel is required and its plasticity period is large. I doesn\'t break easily intead it occupies a new strech limit after every streching. | |
| 4416. |
An ideal gas is compressed at constant temprature what will be effect on internal energy |
| Answer» Wok done = nRTlnv²/v¹<br>du =0<br>Tp de ka ne paiu<br>As per first law of thermodynamics, conservation of energy is dq = du + pdV, where dq = thermal energy of gas du = change in internal energy of gas pdV = work done by gas in expanding due to change in volume dV If T = const., dT = 0 and d(pV) = 0 as pressure and If T = const., dT = 0 and d(pV) = 0 as pressure and volume are inversely proportional. Also, dq = pdV, which shows that there is no change in internal energy.Read more on Sarthaks.com - https://www.sarthaks.com/217713/an-ideal-gas-compressed-constant-temperature-will-its-internal-energy-increase-decrease | |
| 4417. |
Cp--Cv=R |
| Answer» qp=nCp∆t=∆Uqv=nCv∆t=∆HAnd As we know that∆H=∆U+∆(pv)And ∆(pv)=nR∆tNow∆H=∆U+nR∆tnCp∆t=nCv∆t+nR∆tAndCp=Cv+RCp-Cv=RHence proved<br>Put values of Cp and Cv you will get answer<br>Question kya hai? | |
| 4418. |
Explain the process of Sodi Carnot engine. |
| Answer» Bhuuuuuum | |
| 4419. |
Difference between center of mass and center of gravity |
| Answer» Centre of gravity is actually centre of mass it does not act anywhere<br>Centre of gravity acts everywhere on body but centre of mass concentrate at one point only<br>Ya hw is right actually they are same only spelling difference is there<br>Spelling | |
| 4420. |
define COM? Derive an expression for position vector of two particle system. |
| Answer» Chapter 1 low of conservation ,conservative force | |
| 4421. |
what is the use of zener diode |
| Answer» | |
| 4422. |
Derive an expression on work done on isothermal expansion |
| Answer» nRTloge v2/v1 | |
| 4423. |
Ca can beats be produced in two light source of nearby equal frequency |
| Answer» Yes | |
| 4424. |
Principle of continuity is conservation of |
| Answer» A1V1 =A2V2<br>Ideal liquid flow | |
| 4425. |
The escape velocity for the earth is about |
| Answer» Ve =/2gRe<br>11.8 km/sec.<br>11.18km/sec | |
| 4426. |
Reaction due to a body depends on its |
| Answer» Time of reaction | |
| 4427. |
Which one is more elasticRubber or steel? |
| Answer» Steel as it has high elastic limits then rubber.as even at very high temp. Its bond remain intact..<br>Steel<br>Steel | |
| 4428. |
Important derivatons???? |
| Answer» | |
| 4429. |
Doppler effect derivation |
| Answer» | |
| 4430. |
sir please give some important questions |
| Answer» Of which subject | |
| 4431. |
What is the value of Reynold s number for a turbulent flow |
| Answer» | |
| 4432. |
2018 paper cbse |
| Answer» | |
| 4433. |
Bernaulli\'s theorem |
| Answer» Bernaulli\'s theoram says that during a streamline flow , the sum of all the three energies (pressure energy, kinetic energy and potential energy) per unit volume is constant. | |
| 4434. |
Impulse momentum theorem |
| Answer» | |
| 4435. |
State and proove bernauli theorum? |
| Answer» Bernoulli\'s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid\'s potential energy. Derivation :\xa0Let the velocity, pressure and area of a fluid column at a point A be v₁,\xa0p and A₂ and at another point B be v₂,\xa0p₂,\xa0p₂ and A₂ . Let the volume that is bounded by A and B be moved to M and N . let AM = L₁ and BN = L₂ . Now if we can compress the fluid then we have,A₁L₁ = A₂L₂Net work done per volume = p₂ - p₁Kinetic energy per volume = 1/2\xa0ρ v²Kinetic energy gained per volume = 1/2\xa0ρ (v₂² - v₁²)\xa0Potential energy gained per volume =\xa0ρ g(h₂ - h₁)\xa0Now ,\xa0p₁ - p₂ = 1/2\xa0ρ (v₂² - v₁²) +\xa0ρ g(h₂ - h₁)\xa0p₁ - p₂ = 1/2\xa0ρ v₂² - 1/2\xa0ρ v₁² +\xa0ρ g h₂ -\xa0ρ g h₁p₁ + 1/2\xa0ρ v₁² +\xa0ρ g h₁ = p₂ +\xa01/2\xa0ρ v₂² +\xa0ρ g h₂p + 1/2\xa0ρ v +\xa0ρ g h = constant\xa0Hope you like it.. | |
| 4436. |
Why earth is round(goal) in shape? |
| Answer» Earth is not round , it is oval in shape<br>As we know every matter in universe always tries to be in a shape to reduce as less contact as it can i.e round shape that\'s y due to friction and all it\'s shape changes to round to avoid unleashed friction<br>It\'s her choice bro , u can\'t for her !!She will do what she like ,not what you like | |
| 4437. |
Pascal\'s law derivation |
| Answer» Machenic | |
| 4438. |
Prove Cp-Cv=R |
| Answer» Constant volume Cvdt = dU ......eq 1.Contant pressure Cpdt = dU + dW....eq2dW = p dVPut in eq 2 ........Hence proved.........??<br>Assume it and then write hence proved | |
| 4439. |
Which object is considered as point object |
| Answer» Which is relatively very small in size | |
| 4440. |
Practice work on topic mesurement of mass |
| Answer» | |
| 4441. |
What is MLT of capaciter |
| Answer» | |
| 4442. |
Explain Laplace correction? |
| Answer» v=Under outegamaRT upon density | |
| 4443. |
State and prood bernoulli principle |
| Answer» | |
| 4444. |
Observation for physics practical |
| Answer» | |
| 4445. |
Please give blue print for final examination(chapter wise) |
| Answer» | |
| 4446. |
Which is more elastic |
| Answer» Which more elastic rubber or steel | |
| 4447. |
Which is weakest force |
| Answer» Gravitational force<br>Gravitational force is the weakest force in nature<br>Gravitational force | |
| 4448. |
Dderivation for vertical circular motion |
| Answer» | |
| 4449. |
Prove that total energy is conserved at all points |
| Answer» | |
| 4450. |
Derive laplace formula for the speed of sound in gas |
| Answer» | |