For a wavelength at the peak of visual sensitivity 550 nm
The human eye can respond to as little as 10?18J of light energy.
For a wavelength at the peak of visual sensitivity, 550 nm, how many photons lead to an observable flash?
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Discuss why the primary of a power transformer would have excessive current if the secondary were short-circuited. Why would there be no voltage across the secondary if the primary is open. Explain how a transformer with a 1:1 turns ratio.
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For a wavelength at the peak of visual sensitivity, 550 nm, how many photons lead to an observable flash
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