OnlineCBT
Physics · GRAVITATION
हिन्दीAccording to Kepler's second law, the areal velocity of a planet revolving around the Sun is constant. This is a direct consequence of the conservation of which physical quantity?
Correct answer · Option 2
Angular momentum
Explanation
The gravitational force is a central force, so the torque on the planet about the Sun is zero, meaning angular momentum L is conserved and dA/dt = L/(2m) = constant.
