00:01
This question we are given here.
00:02
Our target is to find what is the refractive index.
00:05
Here we need to understand what is the refractive index which is denoted by n.
00:11
We want to explain here in this problem and what is the refraction of light.
00:17
Second is this refraction of light.
00:20
These two phenomenon we need to be explained here in this problem.
00:25
First we understand the refractive index of this medium.
00:28
So refractive index for the medium we can say that light ray changes direction.
00:36
Light ray which changes its direction.
00:44
Light ray changes its direction.
00:48
So when it changes direction or we can say it bends or it bends at the junction.
00:58
Bends at the junction.
01:02
So junction the separating medium.
01:05
Here we can write separating two medium.
01:14
So if the light ray travels from one medium to another medium.
01:17
One medium to the another medium.
01:20
So what happens that we can say another have a higher refractive index.
01:26
Here we can say higher n.
01:29
So it bends towards the normal.
01:31
So here we can write it bends towards normal.
01:40
Bends towards normal.
01:42
That is an important word.
01:45
Else we can say it bends away from normal.
01:52
So this is the main thing we need to understand...