State the Kepler’s law which is represented by the relation $r^3\propto T^2$.

Kepler's law of periods: "The cube of the mean distance between the planet and the sun is directly proportional to the square of the time period taken to move around the sun."

If the mean distance of a planet from the sun is $r$ and the time taken by the planet to move around the sun is $T$, then according to Kepler's law:

$r^3\propto T^2$

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Updated on: 10-Oct-2022

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