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NEET2012PhysicsGravitationActual

The height at which the weight of a body becomes 1 / 16 th, its weight on the surface of earth (radius R ), is

Options

  1. A5 R
  2. B15 R
  3. C3 R
  4. D4 R

Correct answer

C. 3 R

Step-by-step solution

According to question G M m (R+h)^2 = 1 16 G M m R^2 array l 1 (R+h)^2 = 1 16 R^2 or R R+h = 1 4 or R+h R =4 h =3 R array

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