The colors that you see when sunlight strikes a cut crystal wineglass or a cut diamond are a result of the fact that two light waves with
A) different wavelengths travel at different speeds in most materials.
B) the same wavelength in air can have different frequencies in a material.
C) the same frequency in air can have different wavelengths in a material.
D) the same wavelengths can have different colors.

Question

Quizplus · Accepted Answer

When light enters a material, different wavelengths (colors) of light travel at different speeds, causing them to refract at different angles and separate into a spectrum of colors. This phenomenon is known as dispersion.

The Colors That You See When Sunlight Strikes a Cut