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Question

A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted to the region when :

A
U(x)<E
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B
U(x)=0
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C
U(x)E
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D
U(x)>E
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Solution

The correct option is C U(x)E


  • Total energy of the particle: Kinetic energy + Potential Energy
E=KE+U(x)
KE=EU(x)

  • For a moving particle the kinetic energy must be positive i.e KE>0
U(x)E

Hence, the correct option is C

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