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MHT CET202313 May 2023Evening ShiftPhysicsGravitationActual

A mine is located at depth R 3 below earth's surface. The acceleration due to gravity at that depth in mine is ( R = radius of earth, g = acceleration due to gravity)

Options

  1. Ag
  2. B3 g
  3. C2 ~g 3
  4. Dg 3

Correct answer

C. 2 ~g 3

Step-by-step solution

The acceleration due to gravity at depth d is g _ d = g (1- d R ) given d = R / 3 g _ d = g (1- ( R / 3) R )= 2 3 ~g

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