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NTA Abhyas JEE Main2020PhysicsGravitationPractice

An artificial satellite is moving in a circular orbit around the earth, with a speed equal to half the magnitude of escape velocity from the Earth. The height of satellite above the surface of earth is (where R is the radius of the Earth)

Options

  1. AR
  2. B2 R
  3. C3 R
  4. D4 R

Correct answer

A. R

Step-by-step solution

1 2 2 G M R = G M R + h 1 4 × 2 G M R = G M R + h 2 R = R + h h = R

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