NEET Physics Orbital Motion Assertion Reason Question
Assertion (A): The length of the martian year is determined by Kepler’s third law. | Reason (R): Kepler’s third law relates the square of the orbital period to the cube of the semi-major axis of the orbit.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
Kepler’s third law, as referenced in the NCERT context, directly relates the orbital period of a planet to its orbital radius, explaining the determination of the martian year length.
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