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A planet is moving in an elliptical orbi...

A planet is moving in an elliptical orbit. If T, V, E and L stand respectively for its kinetic energy, gravitational potential energy, total energy and magnitude of angular momentum about the centre of force, which of the following statements is correct?

A

T is conserved

B

E is always negative.

C

V is always conserved.

D

L is conserved but the direction of continuously.

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