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How do you calculate kinetic energy of the photoelectron emitted from the surface?
Wiki User
∙ 13y ago
First, you need to work out the energy produced
ie. E=hc/ lambda
then you subtract its work function from the energy produced
ie. KE=E-Eo
Wiki User
∙ 13y ago
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Why the kinetic energy of the emitted electrons varies up to a maximum value?
Let the work function of a metal be W. Let C be a constant of the dimension of energy. if Kis the maximum kinetic energy of an electron then.......W=C-K..... (K HERE IS THE ENERGY SUPLIED BY A PHOTON TO THE ELECTRON)
What is the time lag between the arrival of light at a metal surface and the emission of photoelectron?
no time lag.................
What is infrared light emitted by?
the surface of the atmoshere.
What are the Differences between thermionic emission and photoelectric emission?
Electrons would have enough energy to leave the metal surface, the hot cathode. However, without the forward voltage bias, positive anode. The vacuum diode could not conduct electricity. In other words, the initial kinetic energy of the emitted electrons can be ignored [0 J].Whereas, the photo-emitted electrons possess definite amount of initial kinetic energy.K.E. of e = hf - WorkFunctionSee, the initial k.e. is not neglectable.
To calculate the area of the front surface of a box you---?
to calculate the area of the front surface of a box you should
What is photo electron spectroscopy?
The utilization of photo-ionization and kinetic energy distribution analysis of emitted photoelectrons to study the electronic state and composition of the surface region of a sample is known as photoelectron spectroscopy. This technique can be subdivided into two areas: X-ray photoelectron Spectroscopy and Ultraviolet Photoelectron Spectroscopy.
Why the kinetic energy of the emitted electrons varies up to a maximum value?
Let the work function of a metal be W. Let C be a constant of the dimension of energy. if Kis the maximum kinetic energy of an electron then.......W=C-K..... (K HERE IS THE ENERGY SUPLIED BY A PHOTON TO THE ELECTRON)
What is the time lag between the arrival of light at a metal surface and the emission of photoelectron?
no time lag.................
What is infrared light emitted by?
the surface of the atmoshere.
What best describes the primary wavelength of radiation emitted by Earth's surface?
they are longer than those emitted by the sun.
What are the Differences between thermionic emission and photoelectric emission?
Electrons would have enough energy to leave the metal surface, the hot cathode. However, without the forward voltage bias, positive anode. The vacuum diode could not conduct electricity. In other words, the initial kinetic energy of the emitted electrons can be ignored [0 J].Whereas, the photo-emitted electrons possess definite amount of initial kinetic energy.K.E. of e = hf - WorkFunctionSee, the initial k.e. is not neglectable.
What form is radiation emitted from the earth's surface back into the atmosphere?
Heat rises from the surface of the earth in the form of infra-red radiation.
To calculate the area of the front surface of a box you---?
to calculate the area of the front surface of a box you should
How do you calculate surface density?
How can you calculate surface density if the volume density is 1.4 g/cm3
How do you compare the surface are to volume ratio of cells of different size?
You need to:* Calculate the surface area * Calculate the volume * Divide the surface area by the volume
What affects a bullet's effectiveness its surface area or kinetic energy?
A high kinetic energy, combined with a small cross section.
Is fermi surface always spherical?
No , Fermi Surface is not always spherical . Because the kinetic energy is not same.
