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The photoelectric work function is the minimum amount of energy required to remove an electron from a material through the photoelectric effect. It represents the potential barrier that must be overcome for an electron to be emitted when photons of sufficient energy strike the material. The work function is specific to each material and is typically measured in electron volts (eV).
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Does work function depend on wavelength of incident light?
Yes, the work function is the minimum amount of energy required to remove an electron from the surface of a metal. The wavelength of incident light can indirectly affect the work function through the energy of the photons, with shorter wavelengths having higher energies.
What is a semiconductor device that produce electric current through the photo-voltaic is an?
A semiconductor device that produces electric current through the photo-voltaic effect is a solar cell. When sunlight shines on the cell, it creates an electric current by releasing electrons from the material. This electric current can then be harnessed for various applications, such as generating electricity for homes or powering electronic devices.
Einsteins equation of photo electric effect?
Einstein's equation for the photoelectric effect is E = hf - φ, where E is the kinetic energy of the ejected electron, h is Planck's constant, f is the frequency of the incident light, and φ is the work function of the material. The equation shows that electrons are ejected when they absorb photons with sufficient energy to overcome the work function of the material.
Why ultraviolet light is used in photoelectric effect?
Ultraviolet light is used in the photoelectric effect because it has enough energy to overcome the work function of most metals, causing the emission of electrons. This energy is necessary to liberate electrons from the surface of a material, enabling the photoelectric effect to occur.
What Thermodynamic state function measures the maximum electric work in a fuel cell?
Gibbs free energy is the thermodynamic state function that measures the maximum electrical work that can be obtained from a fuel cell at constant temperature and pressure. It represents the balance between the system's enthalpy, entropy, and temperature.
Date Einstein won the nobel prize in physics?
1921 for his work on the photo electric effect
What famous prize did Albert Einstein win?
The Nobel Prize for his work on the photo-electric effect.
What is photo electric?
when photons got enough energy and getting out from that meterial electric current produced from that movement called photo electric.
Are alkali metals suitable for photo electric emission?
yes alkali metals are suitable for photo electric emission
What are the release dates for How Machines Work - 2010 Thames Flood Barrier Electric Locomotive Gas Pump Photo-Finish Camera 1-8?
How Machines Work - 2010 Thames Flood Barrier Electric Locomotive Gas Pump Photo-Finish Camera 1-8 was released on: USA: 16 April 2010
Electrons ejected in the photoelectric effect are called?
Photo electrons. So current due to these photo electrons is named as photo electric current.
What is the working principle of photoelectric transducer?
photo electric transducer
Does electric work when power cord is not attached to device?
No, an electric device will not work if the power cord is not attached as it needs the electricity provided by the cord to function. Without the power cord, there is no source of electricity to power the device.
What has the author David William Cornelius written?
David William Cornelius has written: 'The study of the velocity of electrons in the photo-electric effect, as a function of the wave-lengths of the light' -- subject(s): Electrons, Radiation
What is the function of resistor in electric circuit?
the function of a resister is to lower the voltage.
What is photo transistor?
Photo transistor always work with solar power
What is the function of an electric motor in terms of electric power and motor?
The electric motor changes electric energy into mechanical energy.
