Assertion. A metallic shield in the form of a hollow shell, can be built to block an electric field.
Reason. In a hollow spherical shell, the electric field inside is not zero at every point.

Options

A. Both A and R false
B. Both A and R true and R is not correct reason for A
C. A is true and R is false
D. Both A and R are true and R is correct reason of A.

Answer

A