Question

state and explain keplers law of planetary motion

Answer 1

Kepler’s laws of planetary motion:

First law (law of orbits) : Each planet revolves around the sun in an elliptical orbit with the sun situated at one of the two foci.

Second law (law of areas) : The areal velocity of a planet around the sun remains constant. OR, The radius vector drawn from the sun to the planet sweeps out equal areas in equal intervals of time.

Third law (law of periods) : The square of the time period of revolution of a planet around the sun is proportional to the cube of the semi major axis of its elliptical orbit i.e, T = a^3.

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Answer 2

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Kepler's Law➫ A law state that the orbit of each planet is an ellipse with the sun at one focus of the ellipse.

▸ This law is also known as - Kepler's Law 0f Planetary Motion.

➧The Kepler's Laws are:-▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃⤵

❶❫ Laws 0f 0rbit:-▬▬▬▬▬▬▬▬▬▬☟

Every planets revolves around the sun in an Elliptical 0rbit with the Sun situated at one of the foci of the ellipse.

❷❫ Laws 0f Area:-▬▬▬▬▬▬▬▬▬▬☟

Each planets moves in a such a way that an imaginary line drawn from the sun to the planets sweeps out equal area in equal intervals of time.

❸❫ Laws 0f Time Period:-▬▬▬▬▬▬▬▬▬▬▬☟

The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its 0rbit.

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