Question
Physics Question on spherical lenses
Which mirror is to be used to obtain a parallel beam of light from a small lamp?
A
Plane mirror
B
Convex mirror
C
Concave mirror
D
Any one of the above
Answer
Concave mirror
Explanation
Solution
Concave mirrors are commonly used to get powerful parallel beams of light to focus the light at the longer distances by placing the source of light at the focus of the Concave mirrors.