Pls answer 17th Q
Q.17. A solid sphere of mass M and radius R is placed in vacuum. The gravitational field at point P at distance r (r > R) from the center is E. If a concentric spherical section of radius $\frac{R}{2}$ is removed from the bigger sphere. Then net gravitational field at point P is
(1) $\frac{E}{4}$
(2) $\frac{E}{2}$
(3) $\frac{7E}{8}$
(4) $\frac{E}{8}$