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A particle is SHM is discribed by the di...

A particle is `SHM` is discribed by the displacement function `x(t) = a cos (omegat + theta)` If the initial `(t = 0)` position of the particle `1cm` and its initial velocity is `picm//s` The angular frequency of the particle is `pi rad//s`, then its amplitude is

A

1 cm

B

`sqrt2`

C

2 cm

D

2.5 cm

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The correct Answer is:
B
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