Question

which of the following terms refers to the amplitude of a light wave such as how high or low the wave is?
pitch
brightness
hue
color

Explanation:

The amplitude of a light - wave is related to its brightness. Pitch is related to sound waves, not light waves. Hue is related to the color type (e.g., red, blue) and color is a general term. Brightness is determined by the amplitude of the light wave, with higher amplitude corresponding to greater brightness.

Answer:

B. brightness