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Which of the following graphs depicts th...

Which of the following graphs depicts the variation of `KE` of a ball bouncing on a horizontal floor with height ? (Neglect air resistances)

A

B

C

D

None of these

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A
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NARAYNA-WORK POWER AND ENERGY-C.U.Q-Key
  1. Internal forces can change

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  2. If the force acting on a body is inversely proportional to its speed, ...

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  3. Which of the following graphs depicts the variation of KE of a ball bo...

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  4. Which of the following statements is correct?

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  5. Two bodies of unequal masses have same linear momentum. Which one has ...

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  6. Two bodies of masses m(1) and m(2) have equal KE. Their momenta is in...

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  7. A body can have

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  8. A rock of mass m is dropped to the ground from a height h. A second ro...

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  9. These diagrams represent the potential energy U of a diatomic molecule...

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  10. Two springs have their force constants K(1) and K(2) and they are stre...

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  11. Two spring have their force constants K(1) and K(2)(K(2) gt K(1)). Whe...

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

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  13. A shell is fired into ait at an angle theta with the horizontal form t...

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  14. A cricket ball and a ping-pong ball are dropped. When they vacuum cham...

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

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

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

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  18. Internal forces can change

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

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  20. Which of the following statements is wrong ?

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