What is threshold frequency in photoelectric emission?

When a certain metal surface is illuminated with light of frequency v, the stopping potential for photoelectric current is V_(0) . When the same surface is illuminated by light of frequency (v)/(2) the stopping potent (V_(0))/(4) . The threshold frequency for photoelectric emission is

When light of wavelength lamda and 2 lamda are incident on a metal surface, the stopping potentials are V_(0) and V_(0)//4 respectively. If c be the velocity of light in air, find the threshold frequency of photoelectric emission.

Stopping poential for the electrons emitted due to incidence of light on a metal is 3V. Determine the frequency of this light and also the work function for metal. Given, the threshold frequency for photoelectric emission from that metal is 6xx10^(14) Hz .

Calculate the threshold frequency of photon for photoelectric emission from a metal of work function 0.1eV.

Explain- The role of threshold frequency is photoelectric effect is ini agreeement withh the particle nature of light and in disagreement with the wave nature of light.

Write down the relation between threshold frequency and photoelectric work function for a metal.

The threshold frequency and the threshold wavelength of photoelectric emission from a metal surface are f_(0) and lamda_(0) . The frequency and the wavelength of incident light are f and lamda . Then

What is threshold frequency in connecting with photoelectric effect?

The threshold frequency of photoelectric effect of a metal surface is f_(0) . The stopping potentials are V_(0) and nV_(0) when the frequencies of incident light are 2f_(0) and 4f_(0) . What is the value of n ?