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Physics of Sound

  1. A particle is executing a simple harmonic motion of amplitude a. Its potential energy is maximum when the displacement from the position of the maximum kinetic energy is
    1. 0
    2. -a
    3. a / 2
    4. – a / 2
Correct Option: B

P.E. of particle executing S.H.M. =
1
2 x2
2

At x = a, P.E. is maximum i.e. =
1
2 a2
2

At x = 0, K.E. is maximum. Hence, displacement from position of maximum Kinetic energy = a.



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