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Find the threshold wavelength of light t...

Find the threshold wavelength of light that would produce photoelectrons for a silver surface . The work function for silver is 4.8 eV

Text Solution

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Energy conservation for the photoelectric effect gives
`eV_0=hv-phi`
At threshold, the photoelectrons have zero kinetic energy, Solving for the wavelength yields
`lambda="hc"/phi`=259 nm
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