Does photocurrent depend on frequency?

Current is not dependent on the frequency of photons. Frequency of photons is only related to the kinetic energy.

How does photocurrent vary with frequency?

Since the current is proportional to the average velocity of the electrons, the current will increase if the average velocity of the electrons is greater. Therefore, if we increase the frequency of the incident light, the photoelectric current will increase.

What are different factors on which photocurrent depends on?

The photocurrent generated depends on the following factors:

• 1) Frequency of the incident light.
• 2) The intensity of incident radiation:
• 3) The potential difference between the electrodes:

How does photoelectric effect depend on frequency?

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.

Does intensity depend on frequency?

Now when talking about sound waves the sound level of a noise (loudness), it is proportional to the intensity of the source. If intensity of a wave is proportional to frequency, why doesn’t sound level, in general, depend on frequency.

Does photocurrent increases with increase in frequency?

Why photocurrent increases with intensity?

Since the emission of photoelectrons is directly proportional to the intensity of the incident light, therefore photocurrent increases with the intensity of light.

What is photocurrent spectroscopy?

Photocurrent spectroscopy is a powerful, nondestructive, in situ technique which has been. used to probe the semiconductor properties of anodic films on a variety of metals. In this paper the quantitative aspects of photocurrent spectroscopy are illustrated with examples taken from studies of lead in sulfuric acid.

What is the relationship between the type of light and the generation of photocurrent?

At sufficiently high optical intensities, as can be reached with ultrashort pulses of light, one may obtain a photocurrent through two-photon absorption, even if the photon energy is below the band gap energy. The photocurrent is then proportional to the square of the incident power.

What is photocurrent in photoelectric effect?

Photocurrent is the electric current through a photosensitive device, such as a photodiode, as the result of exposure to radiant power. The photocurrent may occur as a result of the photoelectric, photoemissive, or photovoltaic effect. The highest (maximum) value of the photo-current is called saturation current.

Does threshold frequency depend on the metal?

Threshold frequency is the minimum frequency of incident light which can cause emission of photo-electrons from the metal surface. Threshold frequency of particular surface depends on nature of its material.