JEE · NEET Previous Year Question

A geo-stationary satellite is orbiting the earth at a height of 6 R above the surface of the earth, R being the radius of the earth. The time period of another satellite at a height of 2.5 R from the surface of earth is -

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

  1. Ahr
  2. B6 hr
  3. Chr
  4. D10 hr

Correct answer: A

Solution

(a) Geo-satellite mean whose time period is
T = 24 hr & from law
∝ ⇒⇒ =
= = 6 hr.

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