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MHT CET202121 Sep 2021Morning ShiftPhysicsGravitationActual

When the value of acceleration due to gravity ' g ' become g 3 above surface of earth at height ' h ' then relation between ' h ' and ' R ' is ( R = radius of earth)

Options

  1. Ah = R 3 -1
  2. Bh = 3 R
  3. Ch =( 2 -1) R
  4. Dh =( 3 -1) R

Correct answer

D. h =( 3 -1) R

Step-by-step solution

aligned & g ^ = g R ^2 ( R + h )^2 = g 3 & 1 3 = R ^2 ( R + h )^2 & 1 3 = R R + h & h =( 3 -1) R aligned

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