Sketch the graphs

(i) The stopping potential has a linear relation with the frequency of incident radiation. It increases linearly with the increase in frequency of incident radiation . Therefore, the stopping potential of metal A is more than that of metal B .ν_B

(ii)

(ii) No, the slope of the graph does not depend on the nature of the material used. Since, the slope of the graph tells us the value of h/e which is constant for both the materials.