The ratio of the acceleration due to gravity on two planets P 1 and P 2 is K 1 . The ratio of their respective radii is K 2 . The ratio of their respective escape velocities is

Question

The ratio of the acceleration due to gravity on two planets P 1 and P 2 is K 1 . The ratio of their respective radii is K 2 . The ratio of their respective escape velocities is, K 1 K 2, 2 K 1 K 2, K 1 K 2, K 2 K 1

MARKS App · Accepted Answer

Since escape velocity from the surface of a planet can be written as v e = 2 g R ratio v e p 1 v e p 2 = 2 g p 1 R p 1 2 g p 2 R p 2 = K 1 K 2

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