How would the stopping potential for a given photosensitive surface change if (i) the frequency of the incident radiation were increased? and (ii) the intensity of incident radiation were decreased? Justify your answer.
a) (i) Increase, (ii) Decrease
b) (i) Increase, (ii) Increase
c) (i) Decrease, (ii) Increase
d) (i) Decrease, (ii) Decrease