9 The Work Function Of A Metal Surface Is 4 80 X 10 19 J The Maximum Speed Of The Emitted Electrons Is Va 730 Km S W 1 (46.46 KiB) Viewed 43 times
answer: 275 nm, 335 nm
9. The work function of a metal surface is 4.80 x 10-19 J. The maximum speed of the emitted electrons is va = 730 km/s when the wavelength of the light is . However, a maximum speed of vB = 500 km/s is observed when the wavelength is . Find the wavelengths. = =
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