Q23. Which one of the following statements on photoelectric effect is NOT correct?

(a)Albert Einstein received the Nobel Prize in Physics for explaining photoelectric effect

(b)For each metal, there is a threshold frequency ν₀ below which this effect is not observed

(c)At a frequency ν > ν₀, the kinetic energy of ejected electrons does not change on increasing the frequency of incident light

(d)The number of electrons ejected is proportional to the intensity of incident light