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Scholar
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posted by  GunnerAK on 7/24/2008 7:14:10 PM  |  status: Live  

Light refraction

Course Textbook Chapter Problem
N/A N/A 25 N/A
Question Details:
A ray of light strikes a flat block of glass (n = 1.48) of thickness 1.00 cm at an angle of 32.0° with the normal. Trace the light beam through the glass and find the angles of incidence and refraction at each surface. 
angle of refraction at first surface    how do i find the angle of refraction at the second surface?
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Sage
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posted by sapporo on 7/24/2008 7:33:07 PM  |  status: Live
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Response Details:
I found the angle of refraction to be 19.471 degrees.
I figured I could find the horizontal distance travelled by rays going through at 30 and 19.471 degrees using tan(theta) = d/2.
Then I subtracted one distance from the other, and I get .446 cm, when, according to the book, I should get 3.88 mm.
s
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