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Physics · GRAVITATION
हिन्दीIf the semi-major axis of the orbit of a planet is doubled, by what factor does its orbital time period of revolution around the Sun increase?
Correct answer · Option 2
\( 2\sqrt{2} \)
Explanation
According to Kepler's third law, \( T^2 \propto a^3 \), so \( T \propto a^{3/2} \). When \( a \) is doubled, \( T' = 2^{3/2} T = 2\sqrt{2} T \).
