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MHT CET Physics question

PhysicsGravitationMHT CET

The density of a newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the planet would be

Answer: (D)

Solution

; equal g with gives ; 2R, 4R

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Question ID VK-060007