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JEE Main202120 Jul 2021Evening ShiftPhysicsGravitationActual

A satellite is launched into a circular orbit of radius R around earth, while a second satellite is launched into a circular orbit of radius 1 . 02 R . The percentage difference in the time periods of the two satellites is:

Options

  1. A1 . 5
  2. B2 . 0
  3. C0 . 7
  4. D3 . 0

Correct answer

D. 3 . 0

Step-by-step solution

T 2 ∝ R 3 T = k R 3 / 2 d T T = 3 2 d R R = 3 2 × 0 . 02 = 0 . 03 % Change = 3 %

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