A man measures time period of a pendulum...

A man measures time period of a pendulum (T) in stationary lift. If the lift moves upward with acceleration `(g)/(4)`, then new time period will be

A

`(2T)/(sqrt5)`

B

`(sqrt5T)/(2)`

C

`sqrt5/(2T)`

D

`2/(sqrt5T)`

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The correct Answer is:

A

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