Human can detect wavelengths of light between the ________ rays and the ________ rays.
A) X-; gamma
B) X-; ultraviolet
C) gamma; ultraviolet
D) ultraviolet; infrared
E) infrared; radar
Question 2
The perceptual color attribute of ________ corresponds to that of light wavelength.
A) saturation
B) brightness
C) hue
D) intensity
E) contrast