If the threshold wavelength for sodium is 5420 Å, then the work funct – McqOptions

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1.	If the threshold wavelength for sodium is 5420 Å, then the work function of sodium is [RPMT 2003]
A.	4.58 eV
B.	2.28 eV
C.	1.14 eV
D.	0.23 eV
Answer» C. 1.14 eV

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