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A point performs simple harmonic oscilla...

A point performs simple harmonic oscillation of period T and the equation of motion is given by x = `a sin (wt + (pi)/6)`. After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity ?

A

`T/8`

B

`T/6`

C

`T/3`

D

`T/12`

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