MHT CET Physics question

A satellite revolves around the earth in an elliptical orbit. Its speed

(A)Is the same at all points in the orbit
(B)Is greatest when it is closest to the earthCorrect
(C)Is greatest when it is farthest from the earth
(D)Goes on increasing or decreasing continuously depending upon the mass of the satellite

Answer: (B)

Solution

Conservation of angular momentum ( const.) gives maximum speed at perigee, the closest point; speed is not constant (a),

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Question ID VK-059910