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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.
| 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....... |
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Answer» Sir dard and a pill full of pressure and tension. I don\'t mean these Science of matter and its motion |
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| 4403. |
Bernoulli\'s principle definition and derivation |
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Answer» P+density.g.h +1/2.density.v^2== constant The sum of pressure,pottential and kinetic energy is constant |
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| 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? |
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Answer» It depend upon initial and final position, not path followed by body. Eg. Gravitational force. Work done by force in a complete cycle is 0,then it is conservative force. Force which is independent of path followed by body It is indepemdent on path |
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| 4409. |
D define Pascal\'s law |
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Answer» The pressure of fluid is constant at aal point in fluid It states that pressure is equal at all points |
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| 4410. |
What is the maximum and minimum value of vector a+b and vector a-b |
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Answer» Hlo Jlo ???? I don\'t know |
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| 4411. |
what is tersholli law?explain in detail |
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Answer» P°+density*g*h+(1/2)density*v²=p°+(1/2)* density *v²and using equation of continuity v=√2gh 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 |
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| 4412. |
To derive newton 1st law and 3rd law using 2nd law of newton? |
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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 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 |
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| 4413. |
State the Laws of Vibration of Stretched Stings. |
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| 4414. |
A body is executing shm in a tunnel dig inside the earth passing through its centre. |
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| 4415. |
Why steel is more elastic than rubber ? |
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Answer» Because of yield point of steel is greater than the rubber 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. |
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| 4416. |
An ideal gas is compressed at constant temprature what will be effect on internal energy |
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Answer» Wok done = nRTlnv²/v¹ du =0 Tp de ka ne paiu 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 |
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| 4417. |
Cp--Cv=R |
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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 Put values of Cp and Cv you will get answer Question kya hai? |
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| 4418. |
Explain the process of Sodi Carnot engine. |
| Answer» Bhuuuuuum | |
| 4419. |
Difference between center of mass and center of gravity |
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Answer» Centre of gravity is actually centre of mass it does not act anywhere Centre of gravity acts everywhere on body but centre of mass concentrate at one point only Ya hw is right actually they are same only spelling difference is there Spelling |
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| 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 |
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Answer» A1V1 =A2V2 Ideal liquid flow |
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| 4425. |
The escape velocity for the earth is about |
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Answer» Ve =/2gRe 11.8 km/sec. 11.18km/sec |
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| 4426. |
Reaction due to a body depends on its |
| Answer» Time of reaction | |
| 4427. |
Which one is more elasticRubber or steel? |
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Answer» Steel as it has high elastic limits then rubber.as even at very high temp. Its bond remain intact.. Steel Steel |
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| 4428. |
Important derivatons???? |
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| 4429. |
Doppler effect derivation |
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| 4430. |
sir please give some important questions |
| Answer» Of which subject | |
| 4431. |
What is the value of Reynold s number for a turbulent flow |
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| 4432. |
2018 paper cbse |
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| 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 |
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| 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? |
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Answer» Earth is not round , it is oval in shape 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 It\'s her choice bro , u can\'t for her !!She will do what she like ,not what you like |
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| 4437. |
Pascal\'s law derivation |
| Answer» Machenic | |
| 4438. |
Prove Cp-Cv=R |
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Answer» Constant volume Cvdt = dU ......eq 1.Contant pressure Cpdt = dU + dW....eq2dW = p dVPut in eq 2 ........Hence proved.........?? Assume it and then write hence proved |
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| 4439. |
Which object is considered as point object |
| Answer» Which is relatively very small in size | |
| 4440. |
Practice work on topic mesurement of mass |
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| 4441. |
What is MLT of capaciter |
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| 4442. |
Explain Laplace correction? |
| Answer» v=Under outegamaRT upon density | |
| 4443. |
State and prood bernoulli principle |
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| 4444. |
Observation for physics practical |
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| 4445. |
Please give blue print for final examination(chapter wise) |
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| 4446. |
Which is more elastic |
| Answer» Which more elastic rubber or steel | |
| 4447. |
Which is weakest force |
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Answer» Gravitational force Gravitational force is the weakest force in nature Gravitational force |
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| 4448. |
Dderivation for vertical circular motion |
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| 4449. |
Prove that total energy is conserved at all points |
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| 4450. |
Derive laplace formula for the speed of sound in gas |
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