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JEE PHYSICS MCQ: GRAVITATION

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The escape velocity of an object on a planet whose radius is 4times that of the earth and '

g

' value 9 times that on the earth, in

km{s^{ - 1}}

is

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Correct option: B

67.2

Option B (67.2) is correct because the escape velocity is proportional to the square root of the product of g and R.

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