A ray of light travels from air into another medium, making an angle of θ1 = 45.0° with the normal as in the figure below.

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A ray of light travels from air into another medium, making an angle of θ1 = 45.0° with the normal as in the figure below.

image
(a) Find the angle of refraction θ2 if the second medium is fused quartz. (The index of refraction for fused quartz is 1.458.)
 °

(b) Find the angle of refraction θ2 if the second medium is crown glass. (The index fo refraction for crown glass is 1.52.)
 °

(a) Find the angle of refraction θ2 if the second medium is polystyrene. (The index of refraction for polystyrene is 1.49.)
 °
asked Apr 2, 2012 in Physics by Gummmys ~Expert~ (1,105 points)
    

1 Answer

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Best answer

Apply Snell's Law of Reflection

use N sin(theta) = N' sin(theta') for a,b,c

N = 1 (for air)

N' = index of refraction for the material

Solve for theta' to get your answer

 

 

answered Apr 4, 2012 by Aaron Lee ~Rookie~ (129 points)
selected Apr 9, 2012 by Gummmys

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