The ratio of the radii of planets A and B is
The ratio of the radii of planets A and B is k1 and ratio of acceleration due to gravity on them is k2. The ratio of escape velocities from them will be
(a) k1 k2 (b) √(k1 k2)
(c) √( k1/k2 ) (d) √(k2/k1)
Answer: b
(53)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)