00:02
In this question, we have a horizontal slab of glass and then on top of the glass, there's a layer of water, okay, and light is incident on the layer of water, at an angle of 60 degrees.
00:29
So there'll be reflection.
00:33
There will also be some more reflection here.
00:37
Okay, the question is asking for the angle of reflection inside the glass, okay? so this angle i call it data g.
00:50
So the task is to find data g, okay, the angle from the normal inside the glass, okay? when the light ray enters the glass, okay? so we'll be using snail's law.
01:16
So this is refraction.
01:18
So we're using snails law.
01:24
Okay, we also need to identify...