# MCQs for Physics NEET 2021

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MCQs on Kepler's Law for NEET 2021

Kepler’s law explains the motions of planets in the solar system.

Kepler’s First Law: All the planets move around the sun in elliptical orbits with the sun at the focus. Kepler’s Second Law: The line joining the planet to the sun sweeps out equal areas in an equal interval of time. ΔA is the area swept

Δt is the time interval

Kepler’s Third Law: This law states that the square of the time period (P) is directly proportional to the cube of the semi-major axis of its orbit.

P2 ∝ a3

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When a planet orbits the Sun, one of the foci of the elliptical orbit is

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What has an eccentricity of zero?

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An Astronomical Unit, or AU, is the average distance between

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Kepler’s second law is known as

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Kepler’s 2nd law deals with

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Kepler’s third law is known as

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The formula for Kepler’s third law is

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Kepler’s first law states that the orbits of the planets are oval in shape or

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The Kepler’s first law is known as

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The farther away a planet is from the sun, the …………. it takes it to orbit the sun once