Blue light with a wavelength of 485 nm falls on the cathode of a photocell and the exit work is 3*10^-19 J. At what anode voltage does the current drop to zero? The result is given in V.
Blue light with a wavelength of 485 nm falls on the cathode of a photocell and the exit work is 3*10^-19 J. At what anode voltage does the current drop to zero? The result is given in V.
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Transcribed Image Text:Blue light with a wavelength of 485 nm falls
on the cathode of a photocell and the exit
work is 3*10^-19 J.
At what anode voltage does the current drop
to zero?
The result is given in V.
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