00:01
We're going to use snowsaw twice for this problem.
00:04
Once, red light, once violet light.
00:12
So, n1, sine, theta, 1, equals n2, sine data, data, 2.
00:24
N1 is error, which is value 1, sine theta 1, the incident angle, with the light going into quartz, equals n2, which is the index of fraction, for red light and quartz, sign theta 2, which is 26 .3.
00:47
We're going to solve for an instant angle here, and then that'll be the same incident angle for violet light in the second part of the problem.
01:00
So, sine theta 1 equals 1 .45 times sign point three.
01:20
So multiply these two together, inverse sign it, or arc sign, sign negative one, and then you get an angle theta 1 of 39 .97 degrees.
01:37
That is the initial angle for the light in the quartz, red light in the quartz, and this would be the same instant angle for violet light into quartz...