1.

The periodic time of a particle doing simple harmonic motion is 4 second . The time taken by it to go from its mean position to half the maximum displacement (amplitude) isA. `2s`B. 1sC. `(2)/(3)s`D. `(1)/(3)s`

Answer» Correct Answer - D
`y=A sin""((2pi)/(T))t `
`implies (A)/(2) =A sin""((2pi)/(4))t`
`implies (pit)/(2)=(pi)/(6)`
`implies t=(1)/(3) s `


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