Following physical quantity is constant where a planet that revolves around Sun in an elliptical orbit.

Which physical quantity is conserved when a planet revolves around the sun ?

Which physical quantity is conserved when a planet revolves around the sun?

A planet is moving around the sun in an elliptical orbit. Its speed is

A : During orbital motion of planet around the sun work done by the centripetal force is not zero at all points on the orbit . R : Planet is revolving around the sun in elliptical orbit .