Minimum work done to shift a body of mass m from a circular orbit of 2R to a higher orbit of radius 3R around the earth (R = Radius of earth):

Minimum work done to shift a body of mass m from a circular orbit of 2

1.	Minimum work done to shift a body of mass m from a circular orbit of 2R to a higher orbit of radius 3R around the earth (R = Radius of earth):
Answer» `(GM m)/(12R)` `(GMm)/(6R)` `(GMm)/(4R)` `(GMm)/(8R)` Solution :WORK DONE = INCREASE in P.E. `=(-GMm)/(3R)+(GMm)/(2R)=(GMm)/(6R)` Thus correct choice is (B).

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Minimum work done to shift a body of mass m from a circular orbit of 2R to a higher orbit of radius 3R around the earth (R = Radius of earth):

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