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

question 8

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, 1.75 and 1.52, what is the critical angle at this interface?

• A) 60.3°
• B) 30.0°
• C) 52.2°
• D) Critical angle does not exist.

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Definitions:

Intermediate

A temporary species formed during the conversion of reactants into products in a chemical reaction.

NaOH

Sodium hydroxide, a highly caustic base and alkali that is used in several industries, commonly known as lye.

P-Nitrophenol

An organic compound with the formula C6H5NO3, characterized by a phenol group orthogonally bonded to a nitro group, known for its acidic properties.

Benzene

A colorless, flammable liquid hydrocarbon with a strong aroma, consisting of a ring of six carbon atoms with alternating single and double bonds; a fundamental component of organic chemistry.