A pendulum suspended from the roof of an elevator at rest has a time period T when the elevator moves up with an acceleration a

Question

A pendulum suspended from the roof of an elevator at rest has a time period T when the elevator moves up with an acceleration a its time period becomes T when the elevator moves down with accleration a its time period becomes T3 then 1 T T T3 2 T T T TT 2 3 T T T

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