NEET Physics Kepler's Laws MCQ Question
Which of the following combinations correctly describe Kepler's laws and their implications?
Kepler's first law states that planets move in elliptical orbits. 2. Kepler's second law implies that a planet moves faster when closer to the Sun. 3. Kepler's third law relates the squares of the periods of orbit to the cubes of the semi-major axes.
Kepler's first law states that planets move in circular orbits. 2. Kepler's second law suggests that planets move at constant speed. 3. Kepler's third law only applies to Earth and its moon.
Kepler's first law describes the gravitational pull between planets. 2. Kepler's second law states that planets slow down as they approach the Sun. 3. Kepler's third law is unrelated to orbital radii.
Kepler's first law describes the fixed position of the Sun. 2. Kepler's second law is about angular momentum in planetary motion. 3. Kepler's third law focuses on the mass of the planets.
Correct Answer
Detailed Explanation
Kepler's laws describe the motion of planets in elliptical orbits, the varying speed of planets in relation to their distance from the Sun, and the relationship between orbital periods and distances from the Sun, as derived from observations by Tycho Brahe and analyzed by Johannes Kepler.
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