Optics Question 910
Question: Given a point source of light, which of the following can produce a parallel beam of light
[CPMT 1974; KCET 2005]
Options:
A) Convex mirror
B) Concave mirror
C) Concave lens
D) Two plane mirrors inclined at an angle of $ 90{}^\circ $
Show Answer
Answer:
Correct Answer: B
Solution:
Object should be placed on focus of concave mirror.
