RE-NEET2026Physics-Gravitation
RE-NEET 2026 Physics Kepler's Laws MCQ Question
Type: MCQ-conceptual-Medium-Class 11
In a solar system, the time-period of revolution of a planet tracing a circular orbit of radius R is proportional to:
A
R³/₂
B
R²
C
R³
D
R¹/₂
Correct Answer
Option A
Detailed Explanation
According to Kepler's third law, the square of the period of revolution is proportional to the cube of the semi-major axis of the orbit. Hence, the time-period is proportional to R³/₂.
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