00:01
Now here in this question, you look at a light ray, being reflected by two mirrors, right? two mirrors.
00:09
So let's try to draw the situation.
00:11
Let's draw a mirror like this first.
00:14
And then another one, let's say like this.
00:17
Okay, two mirrors.
00:18
And suppose we have a light ray going like this, come down, and of course it's going to be reflected, right, like this.
00:28
I didn't draw it well.
00:29
Let me draw it differently because it did not.
00:32
Okay, let me draw it slightly differently in common, just to, let me draw it like this so that we have a beta.
00:42
Okay, like this, come and come out.
00:45
And this other rate comes out.
00:48
And of course, it's gonna reflect it by this as well.
00:54
So that's algorithm rate.
00:55
So basically, let's look at the deviation, i mean the angle, the deviation of the direction of the argument rate and the income rate, right? so the incoming rate, we know this.
01:07
So it's an incoming and all the going.
01:10
So let's look at some of the angles...