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MHT CET Physics question

PhysicsOscillationsMHT CET

The lengths of second's pendulum on the surface of the earth and at an altitude 'h' from the surface of the earth are '' and '' respectively. The radius of the earth 'R' is [MHT-CET 2016]

Answer: (C)

Solution

For T = 2 s, and , so giving

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Question ID VK-068557