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Gravitation — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceGravitation1 Mark
Question
State the Kepler’s law which is represented by the relation $\text{r}^3\propto\text{T}^2.$
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Answer

Kepler’s law of periods states that: The cube of the mean distance of a planet from the sun is directly proportional to the square of time it takes to move around the sun.

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