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MHT CET202120 Sep 2021Evening ShiftPhysicsGravitationActual

The depth ' d ' below the surface of the earth where the value of acceleration due to gravity becomes ( 1 n ) times the value at the surface of the earth is ( R = radius of the earth)

Options

  1. AR ( n -1 n )
  2. BR ( n n +1 )
  3. CR n
  4. DR n ^2

Correct answer

A. R ( n -1 n )

Step-by-step solution

Inside the earth, g^ =g (1- d R ) g n = g (1- d R ) Or d = R ( n -1 n )

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