the stopping potential `V_(o)` (in volt) as a function of frequency (v) for a soidum emitter, is shown in the figure. The work function of sodium from the data plotted in the figure. Will be: [ given plank's constant `(h)=6.63xx10^(-34)Js`, electron charge `e=1.6xx10^(-19)C`)
A
1.82 eV
B
1.66 eV
C
1.95 eV
D
2.12 eV
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A
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