When the light of frequency f is incident on a metal plate, the maximum velocity of electrons emitted is denoted as vā. Which of the following equations represents the relationship between the maximum kinetic energy (Kmax) of emitted electrons and the frequency (f) of incident light?
a) Kmax = hf
b) Kmax = (hf)/2
c) Kmax = (hf)/4
d) Kmax = (2hf)/3
