Ray Optics and ...

The incident ray, the normal at the point of incidence and the refracted ray:

Due to refraction, when seen from outside, a coin placed under water in a bowl, appears to

The primary phenomenon in the working of lens is

Occurrence of mirage in deserts in summer is an example of ..........................

Telescope forms

A glass slab is placed in a medium of higher refractive index than glass. A light ray incident from one surface exits from opposite surface. Then, 

According to laws of refraction, refraction of light at the boundary between two different regions follow:

Light enters from denser to rarer medium. Choose the correct option.

A man sees a small stationary fish deep in a very clear lake and shoots it accurately. He will