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MHT CET 2022 Physics question

PhysicsGravitationMHT CET 2022

The escape velocity of a body from the surface of the earth is 11.2 km/s. The escape velocity of body from a planet having same mean density as the earth but twice the radius of earth is

Answer: (C)

Solution

Escape velocity . With this becomes , so for equal density . For a planet of twice the radius, $' = 2 ×

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Question ID VK-093951