00:01
Now in this question, you're looking at double -slit experiments, right? so it's something that you have two slates, right? something like this.
00:08
And you have a screen, right? now, let me, sorry, the screen, let me do it this way.
00:13
The screen.
00:14
And these are the two slates, and the slates has a separation, which i call it d.
00:21
Let's say it's about 1 .5 millimeter equated question.
00:25
And there's a screen, the screen is 90 centimeters away.
00:30
From the slit.
00:32
And then you have a light wave get in, and the lower wave is supposed to have a wavelength lambda, which is five, seven, four, seven, a nanometer, right? so, and you know that you will form a pattern, right, interference pattern like this, interference pattern like this, right? you have, basically you have, you know, the central peak, and then the first black peak and second black peak like that...