Q.

A pendulum suspended from the roof of an elevator at rest has a time period T1. When the elevator moves up with an acceleration its time period becomes T2. When the elevator moves down with same acceleration its time period becomes T3, then

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a

T1=2T2T3T22+T32

b

T1=T3T2

c

T3=T12+T22

d

T1=T22T3

answer is C.

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A pendulum suspended from the roof of an elevator at rest has a time period T1. When the elevator moves up with an acceleration its time period becomes T2. When the elevator moves down with same acceleration its time period becomes T3, then