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. English Hindi.

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. This results in an increase in the photoelectric current.

In each case, all other factors remain the same. Explain the effect of increase i frequency ii intensity of incident radiation on photoelectric current with suitable graphs. Assertion :In photoelectric effect, at stopping potential emission of photo-electrons is photoelectric current depends on.

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Use app Login. In photoelectric effect, the photocurrent depends both on intensity and frequency of the incident light. Open in App. Verified by Toppr. The correct option is B does not depend on the frequency of incident light but depends on the intensity of the incident light. Photoelectronic current depends on the intensity of the light and is independent of the frequency of incident light.

Photoelectric current depends on

When light strikes materials, it can eject electrons from them. This is called the photoelectric effect , meaning that light photo produces electricity. One common use of the photoelectric effect is in light meters, such as those that adjust the automatic iris on various types of cameras. In a similar way, another use is in solar cells, as you probably have in your calculator or have seen on a roof top or a roadside sign. These make use of the photoelectric effect to convert light into electricity for running different devices. This figure shows an evacuated tube with a metal plate and a collector wire that are connected by a variable voltage source, with the collector more negative than the plate. When light or other EM radiation strikes the plate in the evacuated tube, it may eject electrons. If the electrons have energy in electron volts eV greater than the potential difference between the plate and the wire in volts, some electrons will be collected on the wire. The voltage that stops the electrons from reaching the wire equals the energy in eV.

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The effect of hardness of the work material:. In each case, all other factors remain the same. The correct option is B does not depend on the frequency of incident light but depends on the intensity of the incident light. This phenomenon is known as the photoelectric effect. This is a great opportunity for Engineering Graduates. View Solution. The susceptibility of the paramagnetic material is:. Suggested Exams. When the intensity of incident radiation is increased, the photoelectric current. Option D The photoelectric current depends on intensity but is independent of the frequency. Open in App. 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. 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. A specific amount of energy is required to liberate an electron from a metal surface, known as the work function of the metal.

Wiki User. The strength of electromagnet depends on the electric current flowing through the core because when the current is stopped, the core is no longer magnetized and the rate of change of flux linkage. The photo-cell is the most practical example of the photoelectric effect.

Hot working:. So, this option is incorrect. The property related to hard magnetic materials is:. In order to eliminate the effect of temperature variations upon the length of the spring. Assertion :In photoelectric effect, at stopping potential emission of photo-electrons is stopped. Important Exams. Verified by Toppr. 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? Element which makes steel stainless. When the intensity of the incident photon increases, the number of electrons emitted from the metal surface increases.