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JEE Main202125 Jul 2021Morning ShiftPhysicsGravitationActual

The minimum and maximum distances of a planet revolving around the Sun are x 1 and x 2 . If the minimum speed of the planet on its trajectory is v 0 , then its maximum speed will be:

Options

  1. Av 0 x 1 2 x 2 2
  2. Bv 0 x 2 2 x 1 2
  3. Cv 0 x 1 x 2
  4. Dv 0 x 2 x 1

Correct answer

D. v 0 x 2 x 1

Step-by-step solution

Angular momentum conservation equation, v 0 x 2 = v 1 x 1 v 1 = v 0 x 2 x 1

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