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MHT CET202312 May 2023Morning ShiftPhysicsGravitationActual

The height at which the weight of the body becomes ( 1 9 )^ th its weight on the surface of earth is ( R= radius of earth)

Options

  1. A8 R
  2. B4 R
  3. C3 R
  4. D2 R

Correct answer

D. 2 R

Step-by-step solution

array ll & W _ h = W 9 & mg _ h = mg 9 & ~g _ h = g 9 & GM ( R + h )^2 = GM 9 R ^2 & R + h =3 R & h =2 R array

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