The work function for metals A, B and C are respectively 1.92 eV,…

Question

The work function for metals A, B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein’s equation, the metals which will emit photo electrons for a radiation of wavelength 4100 Å is/are

(a) None of these

(b) A only

(d) All the three metals

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