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The stopping potential V(0) (in volt ) ...

The stopping potential `V_(0)` (in volt ) as a function of frequeny (v) for a sodium emitter, is shown in the figure.
The work functio (in eV) 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`)

Text Solution

Verified by Experts

`f_(0)=4xx10^(14)`Hz ,
`W_(0)=hf_(0)=6.63xx10^(-34)xx(4xx10^(14))J`
`=((6.63xx10^(-34))xx(4xx10^(14)))/(1.6xx10^(-19))`
`=1.66eV`
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