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Physics · GRAVITATION
हिन्दीA satellite is revolving in a circular orbit around the Earth. If its orbital radius increases by \( 2\% \), the percentage increase in its orbital time period is approximately:
Correct answer · Option 2
\( 3\% \)
Explanation
By Kepler's third law, \( T \propto r^{3/2} \). For small fractional changes, \( \frac{\Delta T}{T} = \frac{3}{2} \frac{\Delta r}{r} = \frac{3}{2} \times 2\% = 3\% \).
