A 60° Prism Has a Refractive Index of 1

question 145

Multiple Choice

A 60° prism has a refractive index of 1.71. Calculate the angle of emergence out of the prism for a ray that enters one side at an angle almost parallel to one face, i.e. at 90° to the normal.

• A) 24.3°
• B) 35.8°
• C) 45.1°
• D) 48.7°
• E) 55.3°

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Definitions:

Recessions

are characterized by a significant decline in economic activity spread across the economy, lasting more than a few months, visible in industrial production, employment, real income, and wholesale-retail trade.

Substitutes Goods

Products or services that can replace or be used in place of another to fulfill the same need or desire.

Complementary Goods

Products or services that are consumed together because the use of one enhances the use or value of the other.

Income Elasticity

A measure of how much the demand for a good or service changes in response to a change in consumers' income.