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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.
What mechanical and electronic device has a name derived from a Czechoslovakian word meaning "work; compulsory service"? Ans: From a Czechoslovakian word meaning "work; com
At what velocity a clock should move so that it seems slow by one minute in a day.
Which of the subsequent represent the two kinds of basic (single-concept) electric potential problems?
What is the Directionality of LASER? Directionality: Laser emits light which is highly directional. Laser light is emitted like a relatively narrow beam in an exact direction.
Que: What is an electric current? Answer: From Ohm's Law V = IR amid R being a constant one finds that I = V/R. therefore current is equal to voltage divided by resis
Ask queA cart of weight 25 N is released at the top of an inclined plane of length 1m, which makes an angle of 30° with the ground. It rolls down the plane and hits another cart of
Explain about the total internal reflection. Total internal reflection: While light is incident onto a medium of lesser index of refraction, ray is bent ahead of the norma
Particle function: Protons The number of protons in an atom determines the kind of material: Eg. Hydrogen 1 proton Helium 2 protons Lithium 3 protons B
In the thin lens equation first prove that Zz = f*f (Hint use this diagram along with the characteristics of similar triangles). Then use this equation along with the act that Z^
Kepler's 1-2-3 law Another formulation of Kepler's third law, that relates to the mass m of the primary to a secondary's angular velocity omega & semimajor axis a: m o= ome
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