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What is Kepler's laws

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What is Kepler's laws
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Yogita Ingle 7 years, 1 month ago

Kepler’s 1st Law: Law of Orbits

Statement: - The orbit of every planet is an ellipse around the sun with sun at one of the two foci of ellipse.

Kepler’s 2nd law: Law of Areas

Statement:-The line that joins a planet to the sun sweeps out equal areas in equal intervals of time.

Kepler’s 3rdLaw: Law of periods

Statement: -

  • According to this law the square of time period of a planet is ∝ to the cube of the semi-major axisof its orbit.
  • Suppose earth is revolving around the sun then the square of the time period (time taken to complete one revolution around sun) is ∝ to the cube of the semi major axis.
  • It is known as Law of Periods as it is dependent on the time period of planets.
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