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प्रश्न
Emission of electrons by the absorption of heat energy is called ____________ emission.
पर्याय
photoelectric
field
thermionic
secondary
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उत्तर
Emission of electrons by the absorption of heat energy is called thermionic emission.
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संबंधित प्रश्न
How does one explain the emission of electrons from a photosensitive surface with the help of Einstein's photoelectric equation?
Why does thermionic emission not take place in non-conductors?
The anode of a thermionic diode is connected to the negative terminal of a battery and the cathode to its positive terminal.
Define the term "Threshold frequency", in the context of photoelectric emission.
Why do metals have a large number of free electrons?
A 150 W lamp emits light of the mean wavelength of 5500 Å. If the efficiency is 12%, find out the number of photons emitted by the lamp in one second.
Name the factors on which photoelectric emission from a surface depends.
In the boundary-wall analogy, what does the metal surface represent?
Which are the three main ways electrons can be emitted from a metal surface?
Which is an example associated with photoelectric emission?
