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Questions  

A freely falling body takes 2 seconds to reach the ground on a planet when it is dropped from a height of 8m. If the period of a simple pendulum is 2 seconds on that planet then its length is

a
40 cm
b
50 cm
c
75 cm
d
25 cm

detailed solution

Correct option is A

T=2πla;h=12at2

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