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Important Questions in Physics Paper II for NET Exams


Important Questions in Physics Paper-II for NET Exams



1.Consider Kirthika has a hammer weighing 3 kg. If its velocity = 10 m/s, strikes against the head of a spike and drives it into a block of wood. Gradually the hammer comes to rest in 0.025 s. Now, what should be the impulse of the ball?


  1. 20Ns

  2. 30Ns

  3. 12Ns

  4. 11Ns


2.Which of the following has boundary layer


  1. flow of real fluids

  2. flow of ideal fluids

  3. both of the above

  4. none of the above


3.What is a large Reynold number indication?


  1. It is an indication of laminar flow of the fluid

  2. It is an indication of steady flow of the fluid

  3. It is an indication of highly turbulent flow of the fluid 

  4. both 1 & 2


4. Among which one of the following had proposed the first law of thermodynamics as a special case?


  1. Newton's law

  2. Joule's Law

  3. Green's Law

  4. Charle's Law


5.Which one of the following is the supporting statement for- " The temperature of a gas is the measure of"


  1. average distance between gas molecules

  2. average kinetic energy between the gas molecules 

  3. average potential energy between the gas molecules 

  4. average momentum between the gas molecules


6.In a turbulant flow the shear stress is caused by


  1. density of the fluid

  2. volume of the fluid

  3. eddy viscosity of the fluid

  4. dynamic adhesive force between the fluid molecules


7.What does the diesel cycle consist of?




  1. 2 isothermal+1 constant pressure+ 1 constant volume pressure

  2. 2 adiabatic +2 constant volume pressure

  3. 2 adiabatic +1 constant pressure+ 1 constant volume pressure

  4. 2 isothermal+ 2 constant pressure


8.Which among the given below option is related to Newton's well known phrase - ‘quantity of motion’?


  1. momentum

  2. force

  3. acceleration due to gravity

  4. all of the above


9.Which one of the following is the correct reason for the absence of atmosphere on the moon? 


  1. Because the escape velocity of gas molecules is less than their root mean square velocity.

  2. Because it is closer to the earth

  3. Because it revolves round the earth

  4. both 2 & 3


10.Consider that you have two objects well named as A and B. Where A has a mass of 6 kg and B has a mass of 34 kg respectively. Then


  1.  A has more inertia than B

  2.  B has more inertia than A

  3.  both 1 & 2

  4.  none of the above 




ANSWER KEY



Answer(1) : 2

Answer(2) : 1

Answer(3) : 3

Answer(4) : 4

Answer(5) : 1

Answer(6) : 3

Answer(7) : 3

Answer(8) : 1

Answer(9) : 1

Answer(10) : 2

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