A Slab of Material 1 Rests on the Surface of a Slab

question 61

Multiple Choice

A slab of material 1 rests on the surface of a slab of material 2.A light ray in material 1 has an angle of incidence of 30° on the interface between the materials,while the ray in material 2 has an angle of refraction of 45°.What is the critical angle of incidence for total internal reflection for a ray of light going from material 2 to material 1?

• A)30°
• B)45°
• C)In this case there is no critical angle.
• D)At least one of the indices of refraction or its equivalent is needed to solve this problem.

---

Definitions:

Polar

Referring to a molecule with positive and negative charged ends, resulting from an uneven distribution of electron density.

Cocaine

A powerful stimulant drug derived from the leaves of the coca plant, often used recreationally for its euphoric effects and medically as a local anesthetic.

Crack Cocaine

A highly addictive form of cocaine that has been processed to create a rock crystal, smoked for rapid, intense effects.

Polymers

Large molecules composed of repeating structural units (monomers), which exhibit a wide range of physical and chemical properties, making them useful in countless applications.