Question

Keplers third law of planetary motion provides information about

• A. areal velocity of a planet
• B. nature of motion of a planet
• C. ratio of time periods of two planets
• D. all the above

Answer 1

The correct option is C ratio of time periods of two planets

Kepler's third law states that the square of the orbital periods of a planet is directly proportional to the cube of the semi-major axis of its orbit.Thus it provides information about ratio of time periods of two planets.