Question

A beam of light travelling in air is incident on water. Draw a ray-diagram indicating the change in its path in water.

Answer 1

Explanation:

We know according to law of refraction, " when a ray of light travels from denser medium to rare medium, light moves away from the normal of the surface." I mean, incident angle is less than refraction angle.

[ incident angle is the angle between incident ray and normal line . Refraction angle is the angle between refracted Ray and normal]

Here , a rough daigram is shown in figure. Water is denser medium and air is rare medium

Answer 2

Answer:

We know according to law of refraction, " when a ray of light travels from denser medium to rare medium, light moves away from the normal of the surface." I mean, incident angle is less than refraction angle.

[ incident angle is the angle between incident ray and normal line . Refraction angle is the angle between refracted Ray and normal]

Here , a rough daigram is shown in figure. Water is denser medium and air is rare medium