00:02
Look, in this question, we have the diagram like this.
00:12
So we have this to be r0, this we have 1, we have 2, we have 3, we have 4, we have 5 here.
00:28
So this turns around this value and then straight away moves like this.
00:39
Here, this moves like this, here this moves like this.
00:53
This is 1, this is 0 here.
00:58
So this is first, this is second, this is third and this is fourth.
01:03
So first one is valence band edge at x equals 0.
01:13
Second is electron quasi -fermi level at x equals 0...
