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A simple pendulum is suspended from the ...

A simple pendulum is suspended from the roof of a trolley which moves in a horizontal direction with an acceleration `alpha`, then the time period is given by `T = 2pisqrt(((I)/(T)))` where g is equal to

A

`g`

B

`g-a`

C

`g+a`

D

`sqrt((g^(2)+a^(2)))`

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The correct Answer is:
D
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