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The semiconductor material is refined through a process is known as zone refining. It is used for the production of high purity crystals; silicon for example has a melting temperature, so any impurity present in the crystal decreases the melting temperature. Thus zone refining process is based on the principal that the effect of impurities on the melting point of a material will control the impurity concentration of impurities material the molten and the just frozen. By maintaining the melt at specific temperature a single crystal of the material can be inserted into the molten mass on the end of the rod. After which it is possible to withdraw the single crystal having the molten material adhere to the crystal and solidify maintaining the same orientation. The phase diagram of silicon with impurity near the low-concentration region.
Laws of Refraction: There are two laws of refraction. The incident ray, the refracted ray and the normal to the surface of the point of incidence all lie at the similar plan
WORKING OF TERRESTIAL TELESCOPE
Projectile Motion - Falling to the Ground Projectile motion is the path followed by a ball when you throw it and it falls to the ground. You can change how hard you throw it (w
Q. How several pounds does one gallon of water weigh? Answer:- One wine measure or else US gallon of water weighs 8.34 pounds. An imposing Gallon is ten pounds of water at
Q. Give any two differences among Peltier effect and Joule's law of heating. Joule's law of heating Peltier effect Takes place all th
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INSTANTANEOUS VELOCITY: The velocity of a body at a certain instant of time is known as instantaneous velocity.
A pair of speakers separated by 0.700 m are driven by the same oscillator at a frequency of 688 Hz. An observer, originally positioned at one of the speakers, begins to walk along
(UNIFORM VELOCITY) (i) When instantaneous velocity and average velocity of a body are equivalent, then the body moves with uniform velocity. (ii When instantaneous velocity
A woman walks 250m in the direction 35 degrees east of north, then 170m directly east. (a) using graphical method, find her final displacement from the starting point. (b) compare
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