A Ray of Light Travels Across a Liquid-To-Glass Interface

question 7

Multiple Choice

A ray of light travels across a liquid-to-glass interface.If the indices of refraction for the liquid and glass are,respectively,1.63 and 1.43,what is the critical angle at this interface?

• A)Critical angle does not exist.
• B)79.0°
• C)61.3°
• D)1.07°
• E)​90°

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