The work function 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

Explanation

`eV_(0)=hv-phi_(0)` or `V_(0)=(hv)/e-(phi_(0))/e`
Slope of the stopping potential `(V_(0))` versus frequency `(v)` is `=h//e`=constant. Therefor, slope of `V_(0)` and `v` plot will be same for silver as well as sodium.