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lamkwanhing lamkwanhing
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7 years ago
Making estimates. The human eye can detect as few as 9120 photons per second entering the pupil. About how much energy is this, per second? (Assume the photons have a wavelength of 340 nm.)
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Valued Member
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7 years ago
See if this topic helps: The human eye can detect as few as 9080 photons per second entering the pupil
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