The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46). The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol, v2/v1, is
a. 1.99.
b. 1.07.
c. 0.932.
d. 0.511.
e. 0.760.
c
Physics & Space Science
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