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A particle moves with simple harmonic mo...

A particle moves with simple harmonic motion in a straight line. In first `taus`, after starting form rest it travels a destance a, and in next `tau s` it travels 2a, in same direction, then:

A

amplitude of motion is 3a

B

time period of oscillations is `8tau`

C

amplitude of motion is 4a

D

time period of oscillations is `6tau`

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