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Explain formation of a potential barrier in a p-n junction
Formation of Potential Barrier in a P-N junction: The two kinds of extrinsic semiconductors p-type and n-type are shown in fig. (a). P-type semiconductor is having negative acceptor ions and positively charged holes. While the n-type semiconductor is having positive donor ions and negatively charged electrons.
why the centre of newton ring is black
If the speed of light were smaller than it is, would relativistic phenomena be more or less conspicuous than they are now? All else being similar, involving the rates of the ch
Define term practical optical fibre in short. Optical fibre: A practical optical fibre has in common three coaxial areas. The innermost area is the light guiding region term
Illustrate the principle of potentiometer. Define a mathematical experiment for the comparison of emf's of two cells. Define the principle and construction of potentiometer and
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An α particle is a positively charged particle. Rutherford observed the behaviour of these particles when they approach the interior of the atoms as shown in fig. Rutherford ob
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A physics student performs a double-slit diffraction experiment on an optical bench, as shown in the figure below. The light from a helium-neon laser has a wavelength of 632.8
A 985-kg car travelling south at 29.0 m/s hits a truck travelling 18.0 m/s west, as shown in the figure below. After the collision, the vehicles stick together and travel with
what happens when a melt contains 1% ag with 99%pb?
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