The work function of sodium is 2.3 eV. The threshold wavelength of sod – McqOptions

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1.	The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be [BHU 2003]
A.	2900 Å
B.	2500 Å
C.	5380 Å
D.	2000 Å
Answer» D. 2000 Å

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