1.

Which of the following can make a parallel beam of light when light from a point source is incident on it

Answer»

Concave mirror as well as convex LENS
Convex mirror as well as concave lens
TWO plane MIRRORS placed at `90^(@)` to each other
Concave mirror as well as concave lens

Solution :Light coming from a point source will become a parallel beam of light after reflection from a concave mirror or after refraction from a convex lens.


Discussion

No Comment Found