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Variation of G Due to the Rotation of Earth

The diameter ...

Question

The diameter and density of a planet are twice that of the earth. Assuming the earth and the planet to be of uniform density, find the ratio of the lengths of two simple pendulums, of equal time period, on the surface of the planet and the earth.

A

4 l_{e}

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B

5 l_{e}

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C

6 l_{e}

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D

8 l_{e}

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Solution

The correct option is A $4 l_{e}$

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Variation of G Due to the Rotation of Earth

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