00:01
So to solve for this, we are going to calculate first the wavelength using balmer -rideberg's equation.
00:07
One over the wavelength is equivalent to right -berg's constant, r -h, multiplied by 1 over n -1.
00:12
N -1 will be the lower energy level, and then we square this.
00:15
Then we have 1 over n -2, n -2 will be the higher energy level, and then we square that also.
00:20
Okay, so 1 over the wavelength is equivalent to rh is 1 .09 -74 times 10 to the 7 -d, 7.
00:30
This is per meter, it's the unit.
00:32
Then n1 is 2, so 2 squared minus n2, which is 4 squared.
00:40
So that means the inverse of the wavelength is equivalent to 2057625.
00:47
This is per meter...