A Ray of Light Enters an Equilateral Prism Made of Material

question 13

Multiple Choice

A ray of light enters an equilateral prism made of material with n = 1.45 at an angle of incidence $\theta$ . The internally refracted ray is parallel to the base of the prism.What is the angle of refraction for the ray leaving the prism?

• A) 46.5\(^{\circ}\)
• B) 30.0\(^{\circ}\)
• C) 20.2\(^{\circ}\)
• D) 15.7\(^{\circ}\)
• E) the ray won't leave the prism

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Definitions:

Symptoms

Physical or mental features regarded as indicating a condition or disease.

REM Sleep

A stage of sleep characterized by rapid eye movements, where most dreaming occurs, and which is thought to play a role in memory and learning.

NREM Sleep

A phase of sleep characterized by non-rapid eye movements, during which restorative processes occur in the body and brain.

EEG Activity

A recording of the electrical activity of the brain, typically measured using electrodes placed on the scalp.