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Question 17
The diagram shows light travelling from water into glass. Four angles v, w, x and
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y are shown.
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normal
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Water, ni =1.33
Glass, n2 = 1.5
Which formula correctly represents Snell's law of refraction?
Select one:
a. 1.33 sin w = 1.5 sin y
%3D
b. 1.5 sin v = 1.33 sin x
c. 1.33 sin w= 1.5 sin x
-1..

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