The photoelectric threshold wavelength of a tungsten surface is 272 nm. at. What is the threshold frequency in (Hz)? b. What is the extraction work (in eV) for this tungsten? vs. What is the maximum kinetic energy (in eV) of the electrons ejected from this tungsten surface by ultraviolet radiation of frequency 1.45 × 1015 Hz?

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.