Question
Download Solution PDFKepler’s third law is known as-
Answer (Detailed Solution Below)
Option 4 : Law of periods
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MNS GK 11 September 2020 Questions
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Detailed Solution
Download Solution PDFThe correct answer is option 4) i.e. Law of periods
CONCEPT:
- Kepler's laws of planetary motion
- The first law (Law of orbits): All the planets revolve around the sun in elliptical orbits having the sun at one of the foci.
- The second law (Law of areas): The radius vector drawn from the sun to the planet sweeps out equal areas in equal intervals of time.
- The third law (Law of periods): The square of the time period of revolution of a planet around the sun in an elliptical orbit is directly proportional to the cube of its semi-major axis.
EXPLANATION:
- Kepler's third law of planetary motion describes the time period of revolution of planets around the sun in an orbit. Hence, it is also known as the law of periods.
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