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Two simple pendulum A and B of lengths 1...

Two simple pendulum `A` and `B` of lengths `1.69m` and `1.44m` start swinging at the time from a location where acceleration due to gravity is `10ms^(-1)`. Answer the following question.
After how much time, the two pendulums will be in phase again ?

A

4

B

5

C

6.5

D

8.5

Text Solution

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The correct Answer is:
C
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