We know that the angular momentum of earth is constant but since the earth revolves in elliptical orbit .the the radius must changes that result change in velocity and in angular freqency i.e the time period of earth is chageble

We know that the angular momentum of earth is constant but since the earth revolves in elliptical orbit .the the radius must changes that result change in velocity and in angular freqency i.e the time period of earth is chageble
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