What is the relation between photoelectric current and frequency?
There is no relationship between frequency and photo electric current. It depends on intensity of light. Frequency changes the speed of electrons.
Why is photoelectric current proportional to the intensity of incident radiation 12?
It’s because intensity is directlyproportional to number of photon in light ray and in photoelectric effect one photon can only release one electron and so more intense light means more photon hence more elections will ejected from the metal surface and hence increasing the photo current .
How is the photoelectric current affected on increasing the frequency and intensity of incident radiation and why?
Intensity has nothing to do with the energy of the photon. Therefore, the intensity of the radiation is increased, the rate of emission increases but there will be no change in the kinetic energy of electrons. With an increasing number of emitted electrons, the value of the photoelectric current increases.
What is the relationship between the frequency of the incident photon and the ejection of electrons?
Electrons are ejected only when the frequency of the incident light is higher than a threshold value, fo, regardless of how intense the light is. The threshold frequency depends on the material being illuminated. Electrons are emitted from the surface almost instantaneously, even at low light intensities.
How is photoelectric current affected on increasing frequency?
To study the effect of frequency on the photoelectric effect, the intensity of incident radiation is adjusted in such a way that the saturation current is the same each time. It is observed that for increasing frequency the stopping potentials also tend to increase.
How do kinetic energy and intensity of ejected electrons vary with frequency of incident radiation?
Increasing the frequency of the incident beam increases the maximum kinetic energy of the emitted photoelectrons, and the stopping voltage has to increase. The number of emitted electrons may also change because the probability that each photon results in an emitted electron is a function of photon energy.
How does photoelectric current affect increasing frequency?
We see in photoelectric effect by increasing frequency the K.E of photoelectrons increases. If velocity of electrons increases then time will be less then current should increase then why current remains constant.?
Does photoelectric current depend on frequency?
Current is not dependent on the frequency of photons. Frequency of photons is only related to the kinetic energy. Thus the current remains the same.
How photoelectric current depends on the intensity of incident radiation?
The intensity of incident radiation basically indicates the number of photons falling at a time on the metal surface. So more the number of photons, more the number of electrons eject out at the time. As the current depends on the flow of electrons, an increase in the number of electrons increases the current also.
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