If work function of metal is 3\[eV\] then threshold wavelength will be – McqOptions

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1.	If work function of metal is 3\[eV\] then threshold wavelength will be [RPMT 2000]
A.	4125 Å
B.	4000 Å
C.	4500 Å
D.	5000 Å
Answer» B. 4000 Å

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