Solve the Problem Using Snell's Law $\frac { \sin \theta _ { 1 } } { \sin \theta _ { 2 } } = \frac { v _ { 1 } } { v _ { 2 } }$

question 342

Multiple Choice

Solve the problem using Snell's Law: $\frac { \sin \theta _ { 1 } } { \sin \theta _ { 2 } } = \frac { v _ { 1 } } { v _ { 2 } }$
-A light beam traveling through air makes an angle of incidence of 39° upon a second medium. The refracted beam makes an angle of refraction of 28°. What is the index of refraction of the material of the second medium?
Give the answer to two decimal places.

• A) 0.47
• B) 0.75
• C) 0.63
• D) 1.34

---

Definitions:

U-Shaped Valley

A valley with a distinct U-shaped cross-section, typically formed by glacial erosion.

Tarn

A small mountain lake or pool, formed in a cirque excavated by a glacier.

Shoreline

The boundary line where land meets a body of water, such as a sea, lake, or river, constantly reshaped by the forces of nature.

Bedrock

The solid layer of rock beneath the soil and subsoil, acting as the foundation for the Earth's surface.