An Oil Film Floats on a Water Surface

question 57

Multiple Choice

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 42.3° with the normal,what is the angle of the refracted ray in the water?

• A) 27.3°
• B) 37.7°
• C) 30.3°
• D) 33.8°
• E) ​42.3°

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Definitions:

Tariff

A tax imposed on imported goods and services to protect domestic industries or raise government revenue.

Opportunity Cost

The forfeiture of potential benefits from other options when a particular choice is made.

Protective Tariffs

Tariffs imposed by a government to protect domestic industries from foreign competition by raising the price of imported goods.

Standard Of Living

The level of wealth, comfort, material goods, and necessities available to a person, group, or society.