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MHT CET 2023 Physics question

PhysicsOscillationsMHT CET 2023

A simple pendulum is oscillating with frequency 'F' on the surface of the earth. It is taken to a depth below the surface of earth. (R = radius of earth). The frequency of oscillation at depth is

Answer: (B)

Solution

At depth the acceleration due to gravity is . For , . The frequency of a simple pendulum is , so $F' =

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Question ID VK-097238