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NEET 2010 Physics question

PhysicsGravitationNEET 2010

The additional kinetic energy to be provided to a satellite of mass revolving around a planet of mass , to transfer it from a circular orbit of radius to another of radius () is

Answer: (4)

Solution

The total mechanical energy of a satellite in a circular orbit of radius is . Energy to be supplied E_2E_1\dfrac{GMm}{2R_2}\dfrac{GMm}{2R_1}\dfrac{GMm}{2}\dfrac{1}{R_1}$ -

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Question ID VK-090345