The peak in the spectral sensitivity curve is about _____ for the rods, and about _____ for the cones.
A) 700 nm; 400 nm
B) 450 nm; 800 nm
C) 500 nm; 560 nm
D) 600 nm; 450 nm

Question

Quizplus · Accepted Answer

Rods have a peak spectral sensitivity at around 500 nm (blue-green spectrum) while cones have three types with peaks at around 560 nm (green), 530 nm (blue-green), and 420 nm (violet-blue). Therefore, the peak for cones cannot be represented by a single wavelength.

The Peak in the Spectral Sensitivity Curve Is About _____