Q 11-07-109JEE MainJEE Main 2023 (8 Apr, Shift 1)Easy
The weight of a body on the earth is $400\ \text{N}$. Then weight of the body when taken to a depth half of the radius of the earth will be
Answer: (A) $200\ \text{N}$
$g_d=g\left(1-\dfrac dR\right)=\dfrac g2$, so the weight is $200\ \text{N}$.
Solution by Sreeraj P, M.Sc Physics