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  4. The work functions of Silver and Sodium are 4.6 and 2.3 eV, respectively. The ratio of the slope of the stopping potential versus frequency plot for Silver to that of Sodium is

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Q. The work functions of Silver and Sodium are $4.6$ and $2.3 \,eV$, respectively. The ratio of the slope of the stopping potential versus frequency plot for Silver to that of Sodium is

Dual Nature of Radiation and Matter

Solution:

image
For photoelectric effect
$\frac{h v}{e}-\frac{\phi_0}{e}=V_o$
The slope is $\tan \theta=\frac{ h }{ e }=$ constant
$\therefore$ The ratio will be 1 .