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Q. Illustrate about Optical Memories?
In 1983 one of the most successful consumer products of all times was introduced which is compact disk (CD) digital audio system. This CD was a non-erasable disk which could store more than 60 minutes of audio information on one side. Huge commercial success of this CD enabled development of low-cost optical-disk storage technology that has revolutionised computer data storage. Some optical-disk systems has been introduced. We briefly review each one of these.
Photoelectric electricity is produced directly from solar energy when which following are absorbed in a semiconductor to create an electric current? a) Protons b) Electron
Q. Why the centre of Newton's rings pattern appears dark? The thickness of the air film becomes zero at the point of contact of lens L with glass plate P. Therefore there is no
why flashlight suddenly become dim or bright when shaked?
How can light be defined in simplest form? The common explanation of 'light' (visible) is electromagnetic radiation visible to the human eye. It is only a little part of wha
Ray Diagrams for Concave Mirrors Object Located Beyond the Center of Curvature: Ray diagrams are meaningful tools for denoting the location of an image as generates through a
Q. State Kirchoff's second law in electricity? Kirchoff's second law (voltage law) the algebraic total of the products of resistance as well as current in each part of any
A plane polarized monochromatic light of wave length 5893Å is incident perpendicularly on a quarter wave plate to produce elliptically polarized light. If the refrac
Q. Explain Michelson Morley Experiment? The Michelson Morley experiment was an attempt to detect the velocity of earth with respect to the aluminiferous ether, a medium in spac
Actually vectors are divisible but not directly. A vector is multiplied by the inverse of the vector to be divided.In other way, its magnitude an be divided and multiplied by a uni
what is sound waves
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