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What are the Differences between thermionic emission and photoelectric emission?
Wiki User
∙ 12y ago
Whereas, the photo-emitted electrons possess definite amount of initial kinetic energy.
K.E. of e = hf - WorkFunction
See, the initial k.e. is not neglectable.
Wiki User
∙ 12y ago
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What is the difference between field emission and photoelectric emission?
* emisssion of electron from the surface of the metal when light of suitable frequency falls-photoelectric emission. * emision of electron from the metal by quantum tunnling of electron.
What is the difference between spontaneous emission and stimulated emission?
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
What is the difference between spontaneous and stimulated emission of light?
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
Does photoelectric effect take place below threshold frequency?
The threshold frequency for photoelectric emission is the smallest possible frequency a photon can have to be absorbed/emitted by an electron moving between energy levels in an atom. Explanation: Since electrons can't exist /between/ energy levels, and each electron would be moved a very specific amount by any given photon, only photons of certain frequencies can be properly absorbed/emitted, necessitating a minimum frequency.
Differences between the four main types of nuclear radiation alpha particles beta particles gamma rays and neutron emission?
There are only three types of nuclear radiation - Alpha, Beta & Gamma.
What are the differences between thermionic emission and evaporation?
Thermionic emission occurs when electron leaves the surface of metals while evaporation occur in liquid when strong electron gain energy and escape the liquid surface in gaseous form
What is the difference between field emission and photoelectric emission?
* emisssion of electron from the surface of the metal when light of suitable frequency falls-photoelectric emission. * emision of electron from the metal by quantum tunnling of electron.
Which statement best describes the light that will cause emission of electrons from a given metal through the photoelectric effect?
This is an interaction between photons and the surface of the metal.
How does the sensor control smoke detector?
The smoke detectors use the photoelectric effect or a sensor based on the ionization differences between smoke and air.
What is the difference between electrons and thermions?
free electrons drift away from atom's outermost shell because of loose force of attraction. but thermions are forced out of atom by heat energy. free electrons are responsible for flow of electricity whereas thermions are responsible for thermionic emission.
What is the Difference between electrons and thermion?
free electrons drift away from atom's outermost shell because of loose force of attraction. but thermions are forced out of atom by heat energy. free electrons are responsible for flow of electricity whereas thermions are responsible for thermionic emission.
What are the major differences between the muscle cars from the 50's and the cars now?
The most prominent difference would be the gas emission laws... it is quite amazing how dealerships can still make cars as fast as they are, with the emission laws getting stricter by the year.
What is the difference between spontaneous emission and stimulated emission?
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
What is difference between photoelectric sensor and proximity sensor?
photoelectric sensor-sense both metal & non-metal proximity sensor -sense metal only
What is the difference between spontaneous and stimulated emission of light?
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
What is the Difference between spontaneous emission and stimulated emission any 5points?
miet b4-303
Does photoelectric effect take place below threshold frequency?
The threshold frequency for photoelectric emission is the smallest possible frequency a photon can have to be absorbed/emitted by an electron moving between energy levels in an atom. Explanation: Since electrons can't exist /between/ energy levels, and each electron would be moved a very specific amount by any given photon, only photons of certain frequencies can be properly absorbed/emitted, necessitating a minimum frequency.
