Work function of three elements A, B, and C are A: \( 5.0 \mathrm{eV} \), B: \( 3.8 \mathrm{eV},...

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Work function of three elements A, B, and C are A: \( 5.0 \mathrm{eV} \), B: \( 3.8 \mathrm{eV}, \mathrm{C}: 2.8 \mathrm{eV} \). A radiation of wavelength \( 4125 \AA \) is made to be incident on each of these elements. Show in which case that the photoelectrons will not be emitted.
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