Answer:
The graph of \[{{V}_{0}}\] versus \[v\] is shown in Fig. (i) Slope of \[{{V}_{0}}-v\]graph \[=\frac{\Delta V}{\Delta v}=\frac{h}{e}\] \[[\because e\Delta V=h\Delta v]\] Clearly, slope of \[{{V}_{0}}-v\]graph depends on h and e. It has same value for both materials. (ii) Intercept of potential axis \[=-\frac{W}{e}=-\frac{h{{v}_{0}}}{e},\] which depends on the work function of the material.
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