The Figure Shows a Point Source of Unpolarized Light at a Inside

question 63

Multiple Choice

The figure shows a point source of unpolarized light at A inside a uniform transparent crystal. The ray AO in the crystal strikes the plane surface SS' making an angle of 30° with the normal. This angle is the critical angle for transmission into air.
-Which one of the following statements is true concerning this situation?

• A)When the angle of incidence is equal to the Brewster angle, the angle of refraction is 13°.
• B)When the angle of incidence is equal to the Brewster angle, the angle of refraction is 63°.
• C)When the angle of incidence is equal to the Brewster angle, the angle of refraction is 42°.
• D)Since the Brewster angle is less than the critical angle, there is no refraction when the angle of incidence is equal to \(\theta\)_B.
• E)Since the Brewster angle is greater than the critical angle, there is no refraction when the angle of incidence is equal to \(\theta\) _B.

---

Definitions:

Aptitude Test

A test designed to predict a person’s future performance; aptitude is the capacity to learn.

Automobile Mechanic

A professional who specializes in repairing, maintaining, and sometimes modifying vehicles.

Independent Dimensions

Attributes or factors that describe or assess an entity, such as an object or condition, that are not influenced or manipulated by each other.

Reliably Measured

Capable of being measured in a consistent, accurate, and dependable manner.