00:01
Work done per unit charge is given by charge times a potential difference.
00:09
And this is equal to the kinetic energy where kinetic energy is 1 over 2mv square, which we can write p squared divided by 2m.
00:19
From here our p will be then square root of 2 times mass, the charge on electron potential difference across ab.
00:31
Where we can write a lambda, then lambda will be equal to from lm, h divided by p, where p is, we just wrote square root of 2me charge on electron times a, b potential.
00:49
Then we can solve for a, part a, we can find a lambda, and then solve for v, ab, for part a.
01:00
So we can write ab will be h squared divided by 2 lambda square m charge on electron...