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consider a metallic surface in vacuum that is being illuminated with light of different wavelengths. if...

consider a metallic surface in vacuum that is being illuminated with light of different wavelengths. if the metal is illuminated with light of 360 nm wavelength, electrons can overcome a (reverse) stopping potential of 1.14V.
a. what is the work function of the metal?
b. if the light wavelength is set to 500nm what will the stopping potential be?
c. how large is the photocurrent density if the metal is illuminated with light of 600nm wavelength at a light intensity of 1mW/cm^2?

Science   Advanced-Physics   
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