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Illustrate the chemical vapour deposition method in brief.
Chemical vapour deposition method (CVD):
A number of vapour phase deposition process have been developed for producing fibers along with minimal impurity content. The most popular techniques are the modified chemical vapour deposition (MCVD) method.
Commercial production of fibers is completed by using this method. In this method, upon the inner surface of a pure silica tube the doped silica layer is deposited.
The chemical reaction gets place between the vapour constituents which are being passed down the tube and deposition arises.
Characteristic vapours used are SiCl4, GeCl4 and O2. The reaction is illustrated as:
SiCl4 + O2 → SiCl4 +2Cl2
GeCl4 + O2 → GeO2 + 2Cl2
The position-time graph for two joggers, A and B, is shown in the accompanying figure a. How far apart are the two runners at 10.0 min? 1.50 km b. At what time ar
Explain semiconductor and data storage of electron microscopy. Semiconductor and data storage a. Circuit edit b. Defect investigation and c. Failure analysis.
This assignment is intended to introduce you to the theory of gas turbine propulsion. The theory of the most simple gas turbine aircraft engine, the ideal turbojet, is detailed in
In two-dimension motion a body go in a plane. e.g. a particle rolling in a circle, a cricket ball caught by a fielder. In the first case the body can go round with a fix velocity o
A circuit having of a 10μF capacitor connected in series with a 25 k resistor with a switchable 100V d.c. supply. When the supply is connected, calculate (a) The time constant,
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i do not know the problems solving techniques
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what is ether medium
Q. Illustrate what are the three particles that make up an atom? Answer:- Atoms are conjured of neutrons, protons, and electrons. The protons as well as neutrons are found
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