Which of the following statements about the threshold frequency is correct?
a.
Threshold frequency is the same for all metals.
b.
Threshold frequency depends on the intensity of the incident radiation.
c.
Threshold frequency depends on the frequency of the incident photon.
d.
Threshold frequency depends on the work function of a metal.
Please select the best answer from the choices provided
The correct answer for this question is D) Threshold frequency depends on the work function of a metal. It does not depend on intensity. Intensity of light only affects the number of electrons ejected. Threshold frequency is dependent on the type of metal . It is not determined by the incident photon . Each metal has its own threshold frequency. So the most feasible answer is d.
We know, Threshold frequency depends on the work function of a metal, which means the minimum energy required for ejection of electrons from it's surface.
