The work function for metals A, B and C are respectively 1.92 eV, 2.0 – McqOptions

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1.	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 [CBSE PMT 2005]
A.	None of these
B.	A only
C.	A and B only
D.	All the three metals
Answer» D. All the three metals

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