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GALLIUM PHOSPIDE: It has band gap of 2.3ev. it can be used for light emitting diodes which can emit green or red light. The red light is obtained with zinc or cadmium oxide doping.
SELENIUM: It is found in crystalline and non-crystalline form. It is used as rectifier material for photo voltaic cells and for xerographic printing. Selenium films are used as photo electric light meters. Its melting point is 2200C.
LEAD: it is soft heavy and bluish gray metal. It is highly resistant to many chemical actions but can corrode by nitric acid, lime and rotten organic substances. Lead and its compounds are toxic. It is mechanically weak it cannot withstand vibrations at high temperatures. It alloys easily with Tin and zinc and forms many commercial alloys, including solders and bearing metals.
Bone cancer - A portion of the skeleton being destroyed by cancer will be trying to rebuild itself and will take up more or many elements than normal bone. - The blood is injecte
With that purpose was famous Davisson-Germer experiment with electrons performed? Name the type of communication in which the sign is a discrete and binary coded version of the
How to find out neutral point ? What all things we require to equate or form a equation to find the neutral poind and how to do it?
time dependent magnetic flux that is changing from t=0 to t=torque varies as the flux is passing through stationary coil that has electrical resistance R. Find the amount of heat e
Deduce an expression for the electric potential because of an electric dipole at any point on its axis. Mention one contrasting feature of electric potential of a dipole at a point
The force between two magnetic poles divided by a distance ‘d' in air is ‘F'. At what distance between them the force becomes doubled?
Magnetic lines of flux A line of flux is a line indicating the direction in which a free north pole would travel, if placed in the field at that point. Alternatively it
#how does multihance work in mra and how does it improve mri image quality?question..
It is the magnetic flux density which still remains in magnetic materials even when the magnetic force is removed. It is measured or calculated in Weber/m 2 .
what is the substance produced in the liver that acts in the small intestine during digestion?
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