A Layer of Water (N = 1

question 27

Multiple Choice

A layer of water (n = 1.333) floats on carbon tetrachloride (n = 1.461) contained in an aquarium. To the nearest degree, what is the critical angle at the interface between the two liquids?

• A) 88°
• B) 78°
• C) 66°
• D) 58°
• E) 43°

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