In a photoelectric effect experiment, photons with a wavelength of 300 nm are in
ID: 2123808 • Letter: I
Question
In a photoelectric effect experiment, photons with a wavelength of 300 nm are incident with intensity= S upon a metal target with a work function of W1 and produce zero photocurrent. At the same intensity, incident photons of 200 nm produce a measurable photocurrent Ie.
a) What would change if the photons incident on this same target had a wavelength of 150 nm?
b) With incident photons of wavelength 200 nm, but the target changed to a material with a work function of W2, Ie falls to zero. Compare W2 to W1.
Explanation / Answer
a) even more current would be produced
b) since 200 nm wont make a current now, W2>W1
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