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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.
Diffrence between isobaric process and isochoric process A process in which the pressure is kept constant is known as isobaric process. (i.e. ΔP=0) A process in which
I have a chandelier that hangs in front of my tv, when I look at the tv I can see the chandelier in the tv. What physics phenomenon is this? reflection?
The following steps are taken in the manufacturing of a resistor: (1) PREPARATION OF SUBSTRATE: Substrate should hold the resistive element. It should be a good insula
Water jet machining is an advanced method for cutting plates using a high-velocity water jet mixed with abrasive powder. The jet comes out of a nozzle A of diameter d and follows t
KINEMATIC CHAIN : Refers to an assembly of rigid bodies connected by joints that is the mathematical model for a mechanical system. As in the familiar use of the word chain, the ri
What do you understand by half period zones? What is their other name? Distinguish between physical and geometric (wave) approximations of light.
Basic concepts of electromagnetic spectrum: BASIC CONCEPTS 1. When Sun light falls on a prism, the transmitted light produces a sequence of colours called 'Spectrum'. 2
What are eddy currents? State how their effect is decreased in transformers. (b) Verify the ef?ciency of a 15 kVA transformer for the following conditions: (i) full load, un
Write a short (approx. one page) review of the contribution of one of the following people to the historical development of Physics; Aristotle Ibn al-Haytham Ga
Must all illuminator have forced ventilation? Usually yes, the exception being which with a massive construction that dissipate heat by transfer or radiation.
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