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?
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
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?
- 20Ns
- 30Ns
- 12Ns
- 11Ns
- flow of real fluids
- flow of ideal fluids
- both of the above
- none of the above
- It is an indication of laminar flow of the fluid
- It is an indication of steady flow of the fluid
- It is an indication of highly turbulent flow of the fluid
- both 1 & 2
- Newton's law
- Joule's Law
- Green's Law
- Charle's Law
- average distance between gas molecules
- average kinetic energy between the gas molecules
- average potential energy between the gas molecules
- average momentum between the gas molecules
- density of the fluid
- volume of the fluid
- eddy viscosity of the fluid
- dynamic adhesive force between the fluid molecules
- 2 isothermal+1 constant pressure+ 1 constant volume pressure
- 2 adiabatic +2 constant volume pressure
- 2 adiabatic +1 constant pressure+ 1 constant volume pressure
- 2 isothermal+ 2 constant pressure
- momentum
- force
- acceleration due to gravity
- all of the above
- Because the escape velocity of gas molecules is less than their root mean square velocity.
- Because it is closer to the earth
- Because it revolves round the earth
- both 2 & 3
- A has more inertia than B
- B has more inertia than A
- both 1 & 2
- 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