According to Kepler's Third Law of Planetary Motion, the square of the time period of revolution of a planet around the Sun is directly proportional to: MCQ with Answer and Explanation

According to Kepler's Third Law of Planetary Motion, the square of the time period of revolution of a planet around the Sun is directly proportional to:
A. The mass of the planet
B. The cube of the mass of the Sun
C. The square of the semi-major axis of its elliptical orbit
D. The cube of the semi-major axis of its elliptical orbit
Answer: Option D
Solution (By JKSSB Mock Tests)
Kepler's Third Law (Law of Periods) states that the square of the time period (T^2) of any planet is proportional to the cube of the semi-major axis (r^3) of its orbit. Mathematically, T^2 is proportional to r^3. This law helps in calculating orbital periods or distances of planets and satellites.

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