JEE Main · PhysicsEasy
According to Kepler's second law, a planet sweeps out equal areas in equal intervals of time. This law is a consequence of the conservation of which quantity?
- A.Linear momentum
- B.Kinetic energy
- C.Angular momentum
- D.Total energy
Show correct answer & step-by-step solution
Correct answer: C — Angular momentum
Solution
Kepler's second law states that the areal velocity of a planet is constant. This is equivalent to the conservation of angular momentum because the gravitational force is a central force.
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