Q 11-07-111JEE MainJEE Main 2023 (8 Apr, Shift 2)Easy
The acceleration due to gravity at height $h$ above the earth if $h\ll R$ (radius of earth) is given by
Answer: (C) $g'=g\left(1-\dfrac{2h}{R}\right)$
$g'=g\left(1+\dfrac hR\right)^{-2}\approx g\left(1-\dfrac{2h}{R}\right)$ for $h\ll R$.
Solution by Sreeraj P, M.Sc Physics