Question

The mirror to be used to obtain a parallel beam of light from a small lamp is
a) plane mirror
b) convex mirror
c) concave mirror
d) all​

Answer 1

Answer:

CONCAVE MIRROR

Explanation:

Concave mirror to be used ti obtain a parallel beam of light from a small lamp.

Answer 2

Answer:

d) all

Explanation:

all the mirrors have different characteristics and when light falls on the 3 mirrors it can give parallel beam