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Change in Potential energy is defined fo...

Change in Potential energy is defined for

A

non-conservative forces only

B

conservative forces only

C

both conservative & non-conservative forces

D

neither conservative nor non-conservative forces

Text Solution

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The correct Answer is:
B
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NARAYNA-WORK , ENERGY & POWER -C.U.Q
  1. Which of the following statements is true for work done by conservativ...

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  2. Which of the following statement is incorrect for a conservative field...

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  3. Change in Potential energy is defined for

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  4. Which of the following forces is called a conservative force?

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  5. Identify the non-conservative force in the following

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  6. If x, F and U denote the displacement force acting on and potential en...

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  7. In the case of conservative force

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  8. The total work done on a particle is equal to the change in its kineti...

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  9. A lorry and a car moving with the same KE are brought to rest by apply...

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  10. A shell is fired into air at an angle theta with the horizontal form t...

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  11. A cricket ball and a ping-pong ball are dropped in a vacuum chamber fr...

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  12. A cyclist free-wheels from the top of a hill, gathers speed going down...

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  13. If 'E' represents total mechanical energy of a system while 'U' repres...

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  14. For a body thrown vertically upwards, its direction of motion changes ...

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  15. Internal forces can change

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  16. The negative of the work done by the conserative internal forces on a ...

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  17. Which of the following statement is wrong?

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  18. When a body falls from an aeroplane there is increase in its :

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  19. A body is projected from ground obliquely. During downward motion, pow...

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  20. The blades of a wind mill sweep out a circle of area A. If wind flows ...

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