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

Options

(a) None
(b) A only
(c) A and B only
(d) All the three metals

Correct Answer:

A and B only

Explanation:

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