The earth revolves about the sun in an elliptical orbit with mean radius 9.3 10^ 7 m in a period of 1 year. Assuming that there are no outside influences, then

MHT CET Physics question

The earth revolves about the sun in an elliptical orbit with mean radius m in a period of 1 year. Assuming that there are no outside influences, then

Answer: (B)

The gravitational force is central, so angular momentum is conserved; in an elliptical orbit the speed and distance change, so

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Question ID VK-059920