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NEET2011PhysicsGravitationActual

A particle of mass M is situated at the centre of spherical shell of mass and radius a . The magnitude of the gravitational potential at a point situated at a 2 distance from the centre, will be

Options

  1. A2 G M a
  2. B3 G M a
  3. C4 G M a
  4. DG M a

Correct answer

B. 3 G M a

Step-by-step solution

V_P=V_ sphere +V_ partical aligned & V_P= G M a + G M a / 2 & V= G M a + 2 G M a & V_P= 3 G M a aligned

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