Oscillations - Result Question 32

35. A body executes S.H.M with an amplitude A. At what displacement from the mean position is the potential energy of the body is one fourth of its total energy?

[1993]

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Answer:

Correct Answer: 35. (b)

Solution:

(b) PE=12mω2x2.

Total energy E=12mω2A2

P.E. =14E12mω2x2=18mω2A2

x=12A.



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