Question
How the gravitational field at a point inside a solid sphere vary with distance x from its centre, if x <R and x > R (R-radius)?
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Answer
$\text{E}_{\text{g}}\propto\text{x if x}<\text{R and E}_{\text{g}}\propto\frac{1}{\text{x}^2}\text{ if x}>\text{R}$
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