A planet is moving in an elliptical orbit around the Sun. T, U, E, L stand respectively…
Physics · NEET · NTA Exams — Gravitation
A planet is moving in an elliptical orbit around the Sun. T, U, E, L stand respectively for its kinetic energy, gravitational potential energy, total energy and the magnitude of angular momentum about the centre of force. In this respect, which of the following statement is correct.
- T remains constant
- U is always positive
- E is always negative
- L is not conserved
Answer
(C) E is always negative
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