Does photoelectric current depends on frequency of light?
Current is not dependent on the frequency of photons. Frequency of photons is only related to the kinetic energy.
Does photoelectric effect depend on intensity of light?
In the photoelectric effect, light incident on the surface of a metal causes electrons to be ejected. The classical expectation of the photoelectric effect was that the number of emitted electrons would depend upon the frequency, and their kinetic energy should depend upon the intensity of the light wave.
How photoelectric current depends on 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.?
Is photocurrent independent of frequency?
So photocurrent depends on frequency to kick start with but intensity is what gives it a magnitude(if intensity increases,current increases) and frequency also has a role deciding the speed with which the electrons eject out.
Does photocurrent increase with frequency?
At a particular fixed frequency of incident radiation the rate of the emission of photo electrons i.e. the photocurrent increases with increase in the intensity of the incident light. Photo electric effect does not occur at frequency less than threshold frequency.
Why does photocurrent increase with intensity?
Intensity means that the no of photons incident on unit area in unit time. So if emission is possible , and if intensity increases the no of electrons emitted increases. In thsi way the current increases.
How does increasing the frequency and intensity of light affect a photoelectric current?
If the frequency and the intensity of the incident radiation are fixed, the photoelectric current I increases with an increase in the positive voltage, as more and more electrons are directed onto the electrode. When no additional photoelectrons can be collected, the photoelectric current attains a saturation value.
Does the photoelectric current depend on frequency?
Since we know that photoelectric current depends on the number of electrons emitted per second i.e. Intensity of incident light. But the intensity of light does not depends on frequency of incident light. Hence, we can conclude that : The photoelectric current does not depends on frequency.
What is the relationship between light intensity and photoelectric effect?
The photoelectric current is directly proportional to the light intensity. The kinetic energy of the photoelectrons is directly proportional to the light frequency. The stopping potential is directly proportional to the frequency and the process is instantaneous. Factors affecting Photoelectric Effect
Does the intensity of a photon depend on its frequency?
Yes, the intensity depends, in part, on the frequency. Intensity is power per unit area. Power is energy per time. For a photon, the energy is $h\ u$. So, the intensity will be $$I=Nh\ u / A$$ if $N$ is the monochromatic photon emission rate (photons per second), $\ u$ is the frequency of the photons, and $A$ is the area these photons are hitting.
Does the photocurrent change with frequency of light source?
The photocurrent will tend to remain constant under these conditions since it is proportional to n. With real light sources, typically the easiest parameter to control is the intensity. So it is most likely that the source will keep total intensity constant as the frequency ν increases.