The threshold of dark-adapted (scotopic) vision is 4.00E-11 W/m2 at a central wavelength of 500 nm. If light with this i

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answerhappygod
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The threshold of dark-adapted (scotopic) vision is 4.00E-11 W/m2 at a central wavelength of 500 nm. If light with this i

Post by answerhappygod »

The threshold of dark-adapted (scotopic) vision is 4.00E-11
W/m2 at a central wavelength of 500 nm. If light
with this intensity and wavelength enters the eye when the pupil is
open to its maximum diameter of 8.40 mm, how many photons per
second enter the eye?
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