There are two planets. The ratio of radius of the two planets is K but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocity
(a) ( Kg )1/2 (b) ( Kg )-1/2
(c) ( Kg )2 (d) ( Kg )-2
Answer:a
(5)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)