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MHT CET202121 Sep 2021Morning ShiftPhysicsGravitationActual

A pendulum is oscillating with frequency ' n ' on the surface of the earth. It is taken to a depth R 2 below the surface of earth. New frequency of oscillation at depth R 2 is [ R is the radius of earth]

Options

  1. An 3
  2. Bn 2
  3. C2 n
  4. Dn 2

Correct answer

B. n 2

Step-by-step solution

Frequency of a simple pendulum is given by aligned & n = 1 2 g & n ^ n = g ^ g & g ^ = g (1- d R )= g (1- 1 2 )= g 2 & n ^ = n 2 aligned

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