6. A beam of ultraviolet light with a power of 2.50 W and a wavelength of 124 nm shines on a metal surface. The maximum

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6 A Beam Of Ultraviolet Light With A Power Of 2 50 W And A Wavelength Of 124 Nm Shines On A Metal Surface The Maximum 1 (82.33 KiB) Viewed 28 times

answer:
(a) 5.85 eV (b) 0.250 A (c) 0.125 A (half as many photons) (d)
0.125 A (also half as many photons)
6. A beam of ultraviolet light with a power of 2.50 W and a wavelength of 124 nm shines on a metal surface. The maximum kinetic energy of the ejected electrons is 4.16 eV. (a) (b) (c) ( (d) What is the work function of this metal, in eV? Assuming that each photon ejects one electron, what is the current? If the power, but not the wavelength, were reduced by half, what would be the current? If the wavelength, but not the power, were reduced by half, what would be the current?