Which of the following can make a parallel beam of light when light from a point source is incident on it?
A. Concave mirror as well as convex lens
B. Convex mirror as well as concave lens
C. Two plane mirrors placed at 90o to each other
D. Concave mirror as well as concave lens
i know the correct option is d but why not opt c is my question
plzz help me
Answers
Answered by
5
Explanation:
A is correct option because concave mirror can makes a parallel beam of light. Similarly light rays passing through a convex lens can make parallel beam of light.
Answered by
4
because both mirror can not make parallel beam of light. that's why a concave and a convex lens is used
Similar questions