The Prism Totally Reflects Some Wavelengths of Light as Shown

question 21

Multiple Choice

The prism totally reflects some wavelengths of light as shown, but other wavelengths pass through. The index of refraction of this prism for the longest wavelengths that are totally reflected is approximately

• A) 1.50.
• B) 1.53.
• C) 1.46.
• D) 1.41.
• E) 1.59.

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Definitions:

Vertex

A point where two or more curves, edges, or lines meet, often used to describe the corner point of a polygon or the peak or trough of a parabola.

Parabola

A symmetric curve formed by the intersection of a cone with a plane parallel to a straight line, generatrix, of the cone.

Initial Velocity

The velocity of an object at the start of a time interval.

Coin

A piece of metal, usually flat and circular, authorized by a government for use as money.