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A light ray travels from air into water (n = 1.33). It hits the boundary between the air and the water at an angle of 35 degrees. What is the angle of refraction?

 Feb 21, 2016

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 #2
avatar+33661 
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Use Snell's law:   sin(i)/sin(r) = n

 

i is angle of incidence, r is angle of refraction, so r = sin-1(sin(35°)/1.33) ≈ 19.2°

.

 Feb 21, 2016

3+0 Answers

 #1
avatar+333 
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A ray is a straight line therefore the boundry between the water  and the air will be a semi circle (180 degrees)

Hence the angle of refranction is 180-35=145 degrees. 

 Feb 21, 2016
 #2
avatar+33661 
+20
Best Answer

Use Snell's law:   sin(i)/sin(r) = n

 

i is angle of incidence, r is angle of refraction, so r = sin-1(sin(35°)/1.33) ≈ 19.2°

.

Alan Feb 21, 2016
 #3
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water has an index of refraction of 1.33 what is the speed of light in water?

 Mar 22, 2016

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