Question

(iv) Two-way mirrors in the interrogation rooms use plane mirrors. In
which of the following cases, a two-way mirror work?
a) If the plane mirror is replaced by a spherical mirror, concave on both
sides.
b) If the plane mirror is replaced by a spherical mirror, concave on one
side and convex on the other.
c) If the plane mirror is replaced by a spherical mirror, convex on the
both sides.
d) All of the above
{Irrelevant answers would be reported}​

Answer 1

if the plane mirror is replaced by a spherical mirror convex on both sides