12.If carbon tetrachloride has an index of refraction of 1.461, what is the speed of light through this liquid? (c = 3 x 108m/s)
A.4.38 x 108m/s
B.2.05 x 108m/s
C.4.461 x 108m/s
D.1.461 x 108m/s
A.4.38 x 108m/s
B.2.05 x 108m/s
C.4.461 x 108m/s
D.1.461 x 108m/s
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Answer:
B
Explanation:
Use the equation v=c/n where n = 1.461 and c = speed of light in a vacuum (3x108 m/s).