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CBSE Class 11-science Answered

What are the Kepler's Laws of Planetary Motion?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Kepler's Law of Planetary Motion are:
 
a) Kepler's First Law (Law of Orbit): Every planet revolves around the sun in an elliptical orbit. The sun is situated at one focus of the ellipse.
 
b) Kepler's Second Law (Law of Area): The radius vector drawn from the sun to a planet sweeps equal areas in equal interval of time i.e. the areal velocity of the planet around the sun is constant.
 
c) Kepler's Third Law (Law of Period): the Square of the time period of revolution of a planet around the sun is directly proportional to the cube of semi major axis of the elliptical orbit i.e.
Answered by | 04 Jun, 2014, 03:23: PM

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