Correct option is B
The Correct Answer Is: (b) Kepler
Explanation:
The laws of planetary motion were discovered by Johannes Kepler, a German astronomer, in the early 17th century. Kepler formulated three fundamental laws that describe the motion of planets around the Sun. These laws laid the groundwork for Newton's theory of gravitation.
The laws of planetary motion were discovered by Johannes Kepler, a German astronomer, in the early 17th century. Kepler formulated three fundamental laws that describe the motion of planets around the Sun. These laws laid the groundwork for Newton's theory of gravitation.
Kepler's first law states that planets move in elliptical orbits with the Sun at one focus, his second law explains that a planet sweeps out equal areas in equal times, and his third law establishes a relationship between the orbital period and the size of the orbit.
Information Booster:
- Kepler's Laws of planetary motion were based on detailed observations made by Tycho Brahe, a Danish astronomer, which Kepler later analyzed.
- The second law, the law of equal areas, explains how planets move faster when they are closer to the Sun and slower when farther away.
- Kepler's third law, the harmonic law, showed the relationship between the time a planet takes to orbit the Sun and its distance from the Sun.
- Kepler's work laid the foundation for Newton's laws of motion and universal gravitation, which provided the explanation for why these laws work as they do.
Additional Information:
- Newton : Sir Isaac Newton is known for developing the law of universal gravitation and his laws of motion, which explained the forces behind planetary motion.
- Einstein : Albert Einstein developed the theory of relativity, which redefined our understanding of gravity and planetary motion.
- Galileo : Galileo made significant contributions to astronomy, such as the discovery of Jupiter's moons and the phases of Venus.
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