Physics · 2021
JEE Main · 31 August 2021, Shift 2 · Q6
If R_E be the radius of Earth, then the ratio between the acceleration due to gravity at a depth 'r' below and a height 'r' above the earth surface…
If $\displaystyle \mathrm{R}_{\mathrm{E}}$ be the radius of Earth, then the ratio between the acceleration due to gravity at a depth 'r' below and a height 'r' above the earth surface is :
(Given : $\displaystyle \mathrm{r}<\mathrm{R}_{\mathrm{E}}$ )
Official answer
(2)
$\displaystyle 1+\frac{r}{R_E}-\frac{r^2}{R_E^2}-\frac{r^3}{R_E^3}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.