The difference between the colors blue and red is largely a matter of:
A) differences in light wavelengths.
B) differences in light intensity.
C) differences in the number of wavelengths.
D) both differences in light intensity and light wavelengths.

Question

Quizplus · Accepted Answer

The difference between blue and red light is based on the differences in the wavelengths of the light. Blue light has a shorter wavelength than red light, which is why it appears blue to our eyes while red light appears red. The intensity of the light does not necessarily determine the color, but rather the brightness or darkness of the color.

The Difference Between the Colors Blue and Red Is Largely