Table of Contents
- 1 How does stopping potential depend upon intensity of radiation?
- 2 How does light intensity affect the stopping potential?
- 3 Why does stopping potential not depend on intensity?
- 4 How does the stopping potential in photoelectric emission depend upon the intensity of the incident radiation in a photo cell?
- 5 What is the effect of intensity of incident radiation on the stopping potential in photoelectric emission?
- 6 How does the stopping voltage depend on the intensity and frequency of the light?
- 7 Does the stopping potential in photoelectric emission depends upon the intensity of the incident radiation in a photocell?
- 8 Is the stopping potential independent of intensity of incident radiation?
- 9 Does frequency of incident radiations affect stopping potential of photosensitive plate?
How does stopping potential depend upon intensity of radiation?
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.
How does light intensity affect the stopping potential?
The shorter wavelength light produces higher stopping potentials. This validates the fact that higher energy frequencies (shorter wavelength) have more energy to give to the photoelectrons, thus the photoelectrons receive more energy from higher frequencies and are able to leave the metal with a higher kinetic energy.
Why does stopping potential not depend on intensity?
Intensity gives a measure of number of photo electrons emitted, not a measure of how fast they move after emission. The stopping potential depends only on the frequency (or wavelength) of the light beam. It does not depend on the intensity. The frequency of the light beam determines the energy of the photons.
Why is stopping potential is independent of frequency?
Stopping potential is independent because there is no link in kinetic energy between the number of electrons emitted from the metal surface and number of photons falling into it. Also intensity has no relation to kinetic energy.
What does stopping potential depend?
frequency
The stopping potential does not depend on the intensity nor the number of incident photons but the stopping potential depends on the frequency of the incident light, the higher the frequency of the incident light higher the stopping potential or cut potential.
How does the stopping potential in photoelectric emission depend upon the intensity of the incident radiation in a photo cell?
Does the stopping potential in photoelectric emission depend upon the intensity of the incident radiation in a photo cell? No, the stopping potential does not depend upon the intensity of incident radiation but depends on the nature of photosenstive surface and frequency of the incident radation.
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 the stopping voltage depend on the intensity and frequency of the light?
The stopping voltage depends on the frequency of light incident on the cathode and therefore the maximum kinetic energy received by the electrons also depends on the frequency of the incident light. It is evident that the energy of light is proportional to its frequency.
What is the effect of intensity of incident radiation on the stopping potential in photoelectric effect?
A higher intensity of radiation produces a higher value of photocurrent. For the negative potential difference, as the absolute value of the potential difference increases, the value of the photocurrent decreases and becomes zero at the stopping potential.
How does the stopping potential vary with frequency of incident radiation?
Does the stopping potential in photoelectric emission depends upon the intensity of the incident radiation in a photocell?
No, the stopping potential does not depend upon the intensity of incident radiation but depends on the nature of photosenstive surface and frequency of the incident radation.
Is the stopping potential independent of intensity of incident radiation?
Thus, the stopping potential depends on velocity of electrons and velocity of electron also depends on frequency of incident radiation and work function. Hence, the stopping is independent of intensity of incident radiation. Was this answer helpful?
Does frequency of incident radiations affect stopping potential of photosensitive plate?
Keeping the photosensitive plate (C) and intensity of incident radiation a constant, the effect of frequency of the incident radiations on stopping potential is studied. Fig shows the variation of the photo electric current with the applied potential difference V for three different frequencies.
What is the value of the stopping potential at a frequency?
IIf the frequency of the incident radiation is plotted against the corresponding stopping potential, a straight line is obtained as shown in Fig 7.5. From this graph, it is found that at a frequency νo, the value of the stopping potential is zero.
How do you find the stopping potential of an electron?
= hν −W where m= mass of electron, v = maximum velocity of emitted electrons, h= Plank’s constant, ν = frequency of incident radiation and W = work function of metal. Thus, the stopping potential depends on velocity of electrons and velocity of electron also depends on frequency of incident radiation and work function.