Q 11-07-034NEETJEE MainMedium
The gravitational field due to a uniform solid sphere of mass $M$ and radius $R$ at a distance $\dfrac{R}{2}$ from its centre is
Answer: (B) $\dfrac{GM}{2R^2}$
Concept. Inside a uniform solid sphere $E = \dfrac{GMr}{R^3}$.
Step 1. At $\dfrac R2$. $E = \dfrac{GM}{2R^2}$.
Answer. $\dfrac{GM}{2R^2}$ (Option B).
Solution by Sreeraj P, M.Sc Physics