
An incident ray, passing through the optical centre of a concave lens, after refraction through it, will _____.


Important Questions on Refraction and Dispersion of Light
When an object approaches a convex lens, from infinity towards its focus, the image formed by it _____.

Tanya's grandmother needs a lens to read small letters in her book. For this she should use_____.

Light propagates faster through a Medium than through another Medium . Which of the two media has a higher optical density?

Light propagates faster through a medium than through another medium . State the condition under which no change in the direction of propagation of a light ray would take place when it passes from Medium A to Medium B.

Why does a pencil appear bent when it is partially dipped in water?

Trace the path of rays in the following ray diagrams.

What kind of lens would form an inverted and magnified image of the object?

