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Photoelectric Effect is the emission of electrons by substances, especially metals, when electromagnetic radiations such as x-rays or visible light, of certain minimum frequency, fall on their surfaces. If the energy (from EM Radiations) absorbed is more than the ionization energy then electrons will be emmitted. The emitted electrons can be referred to as photoelectrons in this context.
The effect was discovered by H. R. Hertz in 1887. The effect is also termed the Hertz Effect
Fluorescence is a luminescence that is mostly found as an optical phenomenon in cold bodies, in which the molecular absorption of a photon triggers the emission of another photon with a longer wavelength. The energy difference between the absorbed and emitted photons ends up as molecular vibrations or heat. Usually the absorbed photon is in the ultraviolet range, and the emitted light is in the visible range, but this depends on the absorbance curve and Stokes shift of the particular fluorophore. Fluorescence is named after the mineral fluorite, composed of calcium fluoride, which often exhibits this phenomenon.
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What is the relationship between frequency and kinetic energy in photoelectric effect?
In the photoelectric effect, increasing the frequency of incident light increases the kinetic energy of the emitted electrons. This is because higher frequency light photons carry more energy, which can be transferred to the electrons during the photoelectric effect.
Which phenomenon demonstrates a particle nature of light?
The photoelectric effect demonstrates the particle nature of light. In this phenomenon, light is shown to behave like a stream of particles (photons) by ejecting electrons from a material when it hits the surface.
Is reverse process of photoelectric effect is zeeman effect?
No, the reverse process of the photoelectric effect is not the Zeeman effect. The Zeeman effect is the splitting of spectral lines in the presence of a magnetic field, while the photoelectric effect is the emission of electrons from a material when exposed to light. They are two distinct phenomena in physics.
Do radio and microwaves produce photoelectric effect?
No, radio waves and microwaves do not produce the photoelectric effect. The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light of sufficient frequency (typically ultraviolet or higher). Radio waves and microwaves have lower frequencies and energies than light, so they are not capable of causing the photoelectric effect.
What type of energy uses the photoelectric effect?
Solar energy uses the photoelectric effect to convert light energy into electrical energy. When sunlight shines on a solar panel, the photoelectric effect causes electrons to be released, creating an electric current.
What is the relationship between frequency and kinetic energy in photoelectric effect?
In the photoelectric effect, increasing the frequency of incident light increases the kinetic energy of the emitted electrons. This is because higher frequency light photons carry more energy, which can be transferred to the electrons during the photoelectric effect.
Match the experimental conditions applied to the photoelectric effect observed.?
conditions of photoelectric effect
What percents of xrays are produced in a photoelectric effect?
The amount of xrays produced in a photoelectric effect varies. . . . alot.
Which phenomenon demonstrates a particle nature of light?
The photoelectric effect demonstrates the particle nature of light. In this phenomenon, light is shown to behave like a stream of particles (photons) by ejecting electrons from a material when it hits the surface.
Can photoelectric effect done in vaccum?
Certainly, of course, and you betcha. The presence of air has no function or involvement in the photoelectric effect.
Is reverse process of photoelectric effect is zeeman effect?
No, the reverse process of the photoelectric effect is not the Zeeman effect. The Zeeman effect is the splitting of spectral lines in the presence of a magnetic field, while the photoelectric effect is the emission of electrons from a material when exposed to light. They are two distinct phenomena in physics.
Do radio and microwaves produce photoelectric effect?
No, radio waves and microwaves do not produce the photoelectric effect. The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light of sufficient frequency (typically ultraviolet or higher). Radio waves and microwaves have lower frequencies and energies than light, so they are not capable of causing the photoelectric effect.
What type of energy uses the photoelectric effect?
Solar energy uses the photoelectric effect to convert light energy into electrical energy. When sunlight shines on a solar panel, the photoelectric effect causes electrons to be released, creating an electric current.
What does light produce in a photoelectric effect?
In the photoelectric effect, light produces electrons when it strikes a material surface. The energy of the incident light is transferred to the electrons, causing them to be ejected from the material.
What are the differences between the Compton effect and the photoelectric effect in terms of their interactions with matter?
The Compton effect involves the scattering of X-rays by electrons, resulting in a change in wavelength and energy of the X-rays. The photoelectric effect, on the other hand, involves the ejection of electrons from a material when it is exposed to light, without any change in wavelength. In terms of interactions with matter, the Compton effect involves interactions with free electrons, while the photoelectric effect involves interactions with bound electrons in atoms.
What is the relationship between the kinetic energy of a photoelectron and the frequency of the incident light in the photoelectric effect?
In the photoelectric effect, the kinetic energy of a photoelectron is directly proportional to the frequency of the incident light. This means that higher frequency light will result in photoelectrons with greater kinetic energy.
What is the effect of intensity on photoelectric current?
Increasing the intensity of light in the photoelectric effect results in an increase in the number of photons, which can lead to a higher number of photoelectrons being ejected from the metal surface. This results in an increase in the photoelectric current.
