Physics, 05.10.2019 08:30 mullanebrianot3dpw
Em radiation of an unknown wavelength falls at a normal incidence upon a piece of photoemissive material with a work function of 2.80ev. the max kinetic energy of ejected electrons is 1.79ev. what was the wavelength of the incident radiation? what portion of the em spectrum does this fall into?
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Em radiation of an unknown wavelength falls at a normal incidence upon a piece of photoemissive mate...
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