JEE Main Physics question

When earth moves around the sun, the quantity which remains constant is **[BCECE 2005]**

(A)Angular velocity
(B)Kinetic energy
(C)Potential energy
(D)Areal velocityCorrect

Answer: (D)

Solution

By Kepler's second law (equivalent to conservation of angular momentum for a central force), the areal velocity is constant, while the earth's distance from the

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Question ID VK-154366