Homework Help: Physics

Posted by Hau on Thursday, November 22, 2012 at 10:14pm.

Sunlight strikes a piece of crown glass at an angle of incidence of 35.8 degrees. Calculate the difference in the angle of refraction between a red (660. nm) and a green (550. nm) ray within the glass. The indices of refraction for the red and the green are n = 1.520 and n = 1.526, respectively.

Physics - drwls, Friday, November 23, 2012 at 1:43am
Use Snell's law to compute the angle of refraction for each color. Call the angles A1 and A2. Then compute the difference, A1 - A2. .

Red:
sin35.8 = 1.520*sinA1
sinA1 = 0.38484
A1 = 22.63 degrees

Green:
sin35.8 = 1.526*sinA2.
A2 = ___
A1 - A2 = ___
Physics - Hau, Friday, November 23, 2012 at 2:22pm
Thanks

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