22.5.7) The smallest light intensity that the eye can perceive is about 10 -10 W / m2....
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22.5.7) The smallest light intensity that the eye can perceive is about 10-10 W / m2. How many photons enter the eye pupil per second if the wavelength is λ = 560 nm? The surface of the pupil is approximately 0.5 10-4 m2.
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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