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A simple pendulum of length L is taken f...

A simple pendulum of length L is taken from earth to a planet where the acceleration due to gravity is doubled. What should be its new lenths so that its periodic time is not changed ?

A

L

B

2L

C

`(L)/(2)`

D

3L

Text Solution

Verified by Experts

The correct Answer is:
B
For a simple pendulum `l prop T^(2) g " " therefore (l_(2))/(l_(1))=2`
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MARVEL PUBLICATION-GRAVITATION -TEST YOUR GRASP -2
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