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MHT CET Physics question

PhysicsGravitationMHT CET

The escape velocity of a body from the surface of the earth is 11.2 km/s. The escape velocity of a body from a planet having same mass density as the earth but twice the radius of earth is [MHT-CET 2020]

Answer: (C)

Solution

for equal density, so the value doubles to 22.4

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Question ID VK-060387