Question

According to the spectral sensitivity curve, 450 nm wavelength of light would need to be presented at ____________________to appear as bright as a 550 nm wavelength

Answer 1

To appear as bright as 550 nm light, a 450 nm wavelength of light must be presented at a higher intensity due to the human eye's peak sensitivity around 555 nm.

Step-by-step explanation:

According to the spectral sensitivity curve, 450 nm wavelength of light would need to be presented at a higher intensity to appear as bright as a 550 nm wavelength.

This is because the human eye is not equally sensitive to all wavelengths of visible light; it is most sensitive to wavelengths around 555 nm, which is in the yellow-green part of the spectrum. The spectral sensitivity curve would show that to perceive a 450 nm light (blue-violet range) as bright as a 550 nm light, the intensity of the 450 nm light must be increased.