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MHT CET202124 Sep 2021Evening ShiftPhysicsGravitationActual

The depth from the surface of the earth of radius R , at which acceleration due to gravity will be 60 % of the value of the value on the earth surface is

Options

  1. A2 R 3
  2. B2 R 5
  3. C3 R 5
  4. D5 R 3

Correct answer

B. 2 R 5

Step-by-step solution

aligned & g^ =g (1- d R ) & g^ =0.6 g & 0.6=1- d R & d R =1-0.6=0.4= 2 5 & d= 2 5 R aligned

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