The work function for tungsten and sodium are 4.5 eV and 2.3 eV respec – McqOptions

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1.	The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. If the threshold wavelength \[\lambda \] for sodium is \[5460{AA}\], the value of \[\lambda \] for tungsten is [MP PET 1990]
A.	5893 Å
B.	10683 Å
C.	2791 Å
D.	528 Å
Answer» D. 528 Å

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