Does stopping potential change with intensity?
The stopping potential does not change with the radiation intensity because the kinetic energy of photoelectrons (see (Figure)) does not depend on the radiation intensity.
How does photoelectric current in a photocell vary if the intensity of incident radiation is doubled?
photoelectric current increases. If the wavelength of electromagnetic radiation is doubled, it would only increase the number of photoelectrons, but no energy change. If a frequency of incident radiation is fixed, the photoelectric current increases linearly with increase in intensity of incident radiation.
Does the intensity of light affect stopping potential?
The intensity of the light has no effect on the maximum kinetic energy of the photoelectrons. Therefore, the stopping voltage does not increase.
What happens if the intensity of the incident light is increased?
Intensity increases means more photons of same energy will emit more electrons of same energy , hence only photoelectric current increases.
How does stopping potential vary with intensity of incident radiation?
Stopping potential does not depend on the intensity of incident light. Stopping potential does not depend on the intensity of incident radiation. For a given intensity of radiation, the stopping potential depends on the frequency. Higher the frequency of incident light higher the value of stopping potential.
What is the effect of intensity of incident radiation on the stopping potential in photoelectric emission?
The stopping potential is more negative for higher frequencies of incident radiations. This means that greater the frequency of incident radiations, greater is the maximum kinetic energy of the photo electrons. That is why a greater retarding potential is required to stop them completely.
How does photoelectric current vary with intensity of the radiation?
(a) Photoelectric current in a photocell increases with the increase in the intensity of the incident radiation.
How does the kinetic energy of photoelectron varies with intensity of incident photon?
The maximum kinetic energy of the photoelectrons varies linearly with the frequency and is independent of the intensity of the incident radiation.
What will increase the intensity of incident light of photo electric current?
Explanation: When the intensity of light is increased then it means that the number of photons incident on the metal surface increases which leads to greater production of photoelectrons which means that the photo current is increasing due to increase in intensity of incident radiation.
What is effect of intensity of incident light on the photoelectric current?
Answer: Because when intensity of incident light increases, it means that number of photons increases in incident light. If number of incident photons increases, then number of emitted photo electrons also increases, consequently the photo electric current increases.
How does the stopping potential in photocell changes with the change in the intensity of incident light?
(a) Photoelectric current in a photocell increases with the increase in the intensity of the incident radiation. (b) The stopping potential (V0) varies linearly with the frequency (ν) of the incident radiation for a given photosensitive surface with the slope remaining the same for different surfaces.
What is the effect of the intensity of incident radiation on the stopping potential in photoelectric emission?
The value of stopping potential in photo electirc emission from a metal surface decreases with the decrease in frequency of incident radiation, provided the frequency of radiation is greater than threshold frequency.
What is the relationship between incident radiation intensity and photoelectric current?
(a) Photoelectric current in a photocell increases with the increase in the intensity of the incident radiation. (b) The stopping potential (V0)varies linearly with the frequency (ν)of the incident radiation for a given photosensitive surface with the slope remaining the same for different surfaces.
What is the difference between intensity and stopping potential of radiation?
So intensity of incident radiation is directly proportional to the number of ejected electrons. While the stopping potential depends on the kinetic energy of the ejected electrons which inturn depends upon the difference in the threshold frequency and the frequency of the incident radiation.
What is the stopping potential of a photoelectron?
(b) The stopping potential (V0)varies linearly with the frequency (ν)of the incident radiation for a given photosensitive surface with the slope remaining the same for different surfaces. (c) Maximum kinetic energy of the photo-electrons is independent of the intensity of incident radiation.
How does the stopping potential depend upon frequency of incident light?
Stopping potential depend upon frequency of incident light. Saturating current is independent of frequency of light. Saturation current varies directly as the intensity of incident light. Instantaneous photoelectric current varies directly as the intensity of incident light.