Plot a graph showing the variation of stopping potential with the frequency of incident radiation for two different photosensitive having work functions `W_1 and 1_2(W__1 gt W_2)` . On what factors does the (i) slope and (ii) intercept of the lines depend ?

Explanation

`h upsilon_(1)=K+W_(1)`
`h upsilon_(2)=K+W_(2)`
As `W_(1) gt W_(2)`, so `upsilon_(1) gtupsilon_(2)`