The work function of sodium is 2.3 eV. What will be the maximum kineti – McqOptions

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1.	The work function of sodium is 2.3 eV. What will be the maximum kinetic energy of the photoelectrons emitted by the surface exposed to the radiation of 2000 Å?
A.	2.3 eV
B.	3.9 eV
C.	6.2 eV
D.	3.9 V
Answer» C. 6.2 eV

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