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Q. What is pair production and pair annihilation?
Pair production:
The conversion of a photon in to an electron-positron pair on its interaction with the strong electric field surrounding a nucleus is called pair production.
Pair annihilation:
The converse of pair production in that an electron and positron combine to produce a photon is known as annihilation of matter.
State the process of diffusion When these two pieces are joined together and suitably treated, they from a pn junction. Moment they form a pn junction, some of the
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The potential difference created across the P-N junction due to the diffusion of electron and holes is called potential barrier. For and for silicon On the average the
The total energy of a simple harmonic oscillator is 0.8 erg. What is its kinetic energy when it is midway between an extreme position and mean position?
Air enters in a compressor operating at steady state along with a volumetric flow rate of 37 m³/min at 136 kPa, 305 K and exits with a pressure of 680 pPa and a exact volume of 0.1
When a string under tension is set into vibration, transverse harmonic rays propagate along its length. When the size of string is same, reflected rays will also exist. The operati
assignment on the above topic in minimum 15 pages
the loop shown at right, with
It is the property of changing readily from a solid or liquid to a vapour. It is the speed that a chemical compounds evaporates. Higher volatility indicates faster evaporation.
show that in a glass prism that the refractive index n = sin1/2(A+Dmin)/sin1/2A where a = refracting angle. hence if the angle of incidence i on oan air boundary is 60degrees. calc
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