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Physics Work, Energy, Power and Collision Energy MCQ (Single Correct)

The potential energy function for a particle executing linear SHM is given by where k is the force constant of the oscillator. For , the graph of V(x) versus x is shown in the figure. A particle of total energy E turns back when it reaches . If V and K indicate the potential energy and kinetic energy, respectively of the particle at then which of the following is correct?

A
V = 0, K = E
B
V = E, K = 0
C
V < E, K = 0
D
V = 0, K< E

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The correct answer is:
B

: At any instant, the total energy of an oscillator is the sum of kinetic energy and potential energy

Total energy E = K+ V

At x = the particle turns back, therefore its velocity at this point is zero, i.e. v = 0

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