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Q.

Earth goes round the Sun with


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a

Same momentum

b

Same velocity

c

Varying velocity

d

Varying K.E. 

answer is C.

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Detailed Solution

The earth goes around the Sun with varying velocity.
Earth round the Sun in an elliptical path. According to Kepler’s law, total angular momentum should be conserved. As distance varies in an elliptical path so, to conserve momentum, velocity should be varied in an elliptical path. Therefore earth goes around the Sun with varying velocities.
 
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