Physics-Kepler's Laws

NEET Physics Kepler's Laws Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 11

Assertion (A): Kepler's second law states that the line joining a planet to the Sun sweeps out equal areas in equal intervals of time. | Reason (R): This law implies that planets move faster when they are closer to the Sun and slower when they are farther from the Sun.

A

Both A and R are true, and R is the correct explanation of A.

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true, but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

Kepler's second law, as described, indicates that the areal velocity of a planet is constant, which results in varying speeds along its elliptical orbit. Hence, R correctly explains A.

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