work function of three metals A,B and C are 4.5ev ,4.3ev,3.5ev
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Work function of three metals A, B and C are 4.5 eV, 4.3 eV and 3.5 eV respectively. If a light of wavelength 4000 Å is incident on the metals then (a) photoelectrons are emitted from A. ... (c) photoelectrons are emitted from C. (d) photoelectrons are emitted from all the metals.
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