Solve the problem using Snell's Law: 
= 
.A light beam in air travels at 2.99 × 108 meters per second. If its angle of incidence to a second medium is 39° and its angle of refraction in the second medium is 29°, what is its speed in the second medium (to two decimal places)?
A. 1.45 × 108 mps
B. 2.30 × 108 mps
C. 3.88 × 108 mps
D. 1.88 × 108 mps
Answer: B
Mathematics
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B. 
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A. 
%
B. 9%
C. 150%
D. 
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