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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.
Differences between anomalous zeeman effect and normal?
normal zeeman effect occurs in strong magnetic field while anamolous zeeman effect occur in weak magnetic field
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.
Which of the following modern technologies makes use of the photoelectric effect?
The photo-cell is the most practical example of the photoelectric effect. Light strikes a cathode, which causes an emission of electrons and produces current.
Why does stimulated emission of radiation take place?
The stimulated emission of radiation takes place because it can. "Something" is stimulated, and, if properly stimulated, it reacts by the emission of radiation. If the thing being stimulated emits amplified light as a result of the stimulation, it's a laser (LASER - light amplification by stimulated emission of radiation). By picking the right "stuff" to stimulate, and then by stimulating it "correctly" with a source, we can get it to lase, mase (microwaves) or something like that. In another answer to the question, the reason the emission takes place is because we set things up so that we will get this effect as a result of our choice of materials and arrangements. We want the effect cited, and we contrive (through applied physics and/or applied electronics) to get it. Got links if you want them. They are to related articles posted by our friends at Wikipedia, where knowledge is free.
What are 4 methods of electron emission?
1- Secondary Emission 2- Thermionic Emission 3- Field Emission 4- Photo-Electric Emission Badbanky
Is not deflected by a magnetic field by the radioactive emission?
Gamma rays .
Does changing gear ratio effect emission laws?
Yes it does.
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.
How many types of field effect transistor?
There are two types of field effect transistors:junction field effect transistors andmetal-oxide semiconductor field effect transistors.
How field effect operates in organic chemistry?
what is field effect
What does FESEM mean in electron microscopy?
Field Emission Scanning Electron Microscopy
Environmental impacts from carbon dioxide emission?
greenhouse effect ~> gobal warming
What is the result of combining an acid with a carbonate?
The most obvious effect is the emission of carbon dioxide.
What is the emission of electrons from a metals surface when light of a certain frequency shines on it?
photoelectric effect
The atmospheric greenhouse effect is produced mainly by the?
absorption and re-emission of infrared radiation by the atmosphere.
If you wanted determine the temperature of a star what measurements would you make?
Emission Spectrum
