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Who enunciated the laws of planetary motion?
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- Nicolaus Copernicus
- Johannes Kepler
- Isaac Newton
- Galileo
- Nicolaus Copernicus
Correct Option: B
Kepler’s laws of planetary motion are three scientific laws describing orbital motion, each giving a description of the motion of planets around the Sun.
The laws are: the orbit of every planet is an ellipse with the Sun at one of the two foci; a line joining a planet and the Sun sweeps out equal areas during equal intervals of time; and the square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.