Oscillations - Result Question 29

32. There is a body having mass m and performing S.H.M. with amplitude a. There is a restoring force F=kx. The total energy of body depends upon

(a) k,x

(b) k,a

(c) k,a,x

(d) k,a,v

[2001]

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Answer:

Correct Answer: 32. (b)

Solution:

  1. (b) Total Energy of body performing simple harmonic motion =12mω2a2=12ka2

where k=mω2

T.E.=K.E.+P.E.=12m(a2x2)ω2+12mω2x2

Hence energy depends upon amplitude and k (spring constant).



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