Photoelectric current depends on

Use app Login. In photoelectric effect, the photocurrent depends both on intensity and frequency of the incident light. Open in App.

When the light of sufficiently small wavelength is incident on the metal surface, electrons are ejected from the metal instantly. This phenomenon is called the photoelectric effect. Last updated on Feb 9, This is a great opportunity for Engineering Graduates. Get Started.

Photoelectric current depends on

In photoelectric effect, the photo current:. The photoelectric current depends on intensity but is independent of the frequency. So, this option is incorrect. Byju's Answer. In photoelectric effect, the photo current: increases with increase of the frequency of incident photon does not depend on the frequency of photon but depends only on intensity of incident light decreases with increase of frequency of incident photon depends both on intensity and frequency of incident beam. Open in App. The correct option is B does not depend on the frequency of photon but depends only on intensity of incident light Explanation for correct option: Option B When electromagnetic radiation hits a material, some electrons are emitted from it. This phenomenon is known as the photoelectric effect. The current that flows through a material due to the photoelectric effect is known as the photoelectric current. A specific amount of energy is required to liberate an electron from a metal surface, known as the work function of the metal. When the intensity of the incident photon increases, the number of electrons emitted from the metal surface increases.

The property related to hard magnetic materials is:. Option D The photoelectric current depends on intensity but is independent of the frequency.

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If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Donate Log in Sign up Search for courses, skills, and videos. Explaining the experiments on the photoelectric effect. How these experiments led to the idea of light behaving as a particle of energy called a photon. Key points. Based on the wave model of light, physicists predicted that increasing light amplitude would increase the kinetic energy of emitted photoelectrons, while increasing the frequency would increase measured current. Contrary to the predictions, experiments showed that increasing the light frequency increased the kinetic energy of the photoelectrons, and increasing the light amplitude increased the current. Introduction: What is the photoelectric effect?

Photoelectric current depends on

The energy quantization of electromagnetic radiation in general, and of light in particular, is expressed in the famous relation. The notion of light quantization was first introduced by Planck. Its validity is based on solid experimental evidence, most notably the photoelectric effect. The basic physical process underlying this effect is the emission of electrons in metals exposed to light. No photoelectrons are emitted from the metal when the incident light is below a minimum frequency, regardless of its intensity. The value of the minimum frequency is unique to each metal.

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More will be the number of photons, more will be the electrons no. Answer Detailed Solution Below Option 2 : 1, 2 and 3. When the intensity of the incident photon increases, the number of electrons emitted from the metal surface increases. The Photon Model. In each case, all other factors remain the same. In photo-electric effect, the photo-electric current. Suggested Test Series. The photocurrent generated depends on the following factors: 1 Frequency of the incident light Frequency is an important factor because it decides whether the effect will take place or not. The photoelectric current depends on intensity but is independent of the frequency. This is a great opportunity for Engineering Graduates. Addition of copper to aluminium results in:. The correct option is B does not depend on the frequency of photon but depends only on intensity of incident light Explanation for correct option: Option B When electromagnetic radiation hits a material, some electrons are emitted from it. Thus, photoelectric current depends upon the intensity of light.

When light strikes materials, it can eject electrons from them.

Similar Questions. What will be the effect on anode current when i the intensity of light is gradually increased, ii the frequency of incident radiation is increased, and iii the anode potential is increased? So higher intensity, more no. More Properties of Materials Questions Q1. So, this option is incorrect. The pressurized-water reactor is similar to a boiling-water reactor, except that the coolant water is pumped through the reactor under. Option D The photoelectric current depends on intensity but is independent of the frequency. This is a great opportunity for Engineering Graduates. Photoelectronic current depends on the intensity of the light and is independent of the frequency of incident light. In photoelectric effect, the photoelectric current is independent of. Coulomb blockade can be readily observed when the single electron charging energy is larger than.