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MHT CET Physics question

PhysicsOscillationsMHT CET

A pendulum is oscillating with frequency 'n' on the surface of the earth. It is taken to a depth below the surface of earth. New frequency of oscillation at depth is [R is the radius of earth] [MHT-CET 2021]

Answer: (B)

Solution

At depth , for , and , so

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Question ID VK-068494