What is Kepler's third law of planetary motion?
Solution :
Kepler’s third law of planetary motion (Law of periods) states that the square of the time period of revolution of a planet around the sun is directly proportional to the cube of the semi major axis of its elliptical orbit i.e.
T2 = R3
T2 = R3
Where,
T = time taken by the planet to revolve once around the sun.
T = time taken by the planet to revolve once around the sun.
R = semi major axis of the elliptical orbit