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Under controlled darkened conditions in the laboratory, a light receptor cell on the retina of a person eye can detect a single photon of light of wavelength 503 nanometers and having an energy of 3.84 × 1019 Joule. We shall suppose that this energy is absorbed by a single cell during one period of the wave. Cells of this kind are called rods and have a diameter of approximately 2.0 × 103 millimeter. Compute the intensity delivered to a rod?

(in W/m2)

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  • Category:- Physics
  • Reference No.:- M91225160

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