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JEE Main Physics question

PhysicsGravitationJEE Main

Periodic time of a satellite revolving above Earth's surface at a height equal to , the radius of Earth, is [ is acceleration due to gravity at Earth's surface]

Answer: (B)

Solution

Orbital radius . \sqrt{\dfrac{(2R)^3}{GM}}\sqrt{\dfrac{8R^3}{gR^2}}$

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Question ID VK-154674