JEE PHYSICS MCQ: GRAVITATION

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Assertion: Comets move around the Sun in elliptical orbits. The gravitational force on the comet due to Sun is not normal to the comet? Velocity but the work done by the gravitational force over every complete orbit of the comet is zero.
Reason: Gravitational force is a non-conservative force.

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Correct option: C

If assertion is true but reason is false

Option C is correct because the assertion is true, comets move in elliptical orbits and the gravitational force does zero work over a complete orbit, but the reason is false, as gravitational force is a conservative force.

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