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The Amount of Data That Can Be Stored in an Optical

Question 145

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The amount of data that can be stored in an optical disc storage medium is related to the wavelength of the laser employed.Blu-Ray discs that are read by a laser having a wavelength of 405 nm have a much greater storage capacity than a DVD that is read by a 650 nm laser.The color of the 405 nm laser beam is ________,whereas the color of the 650 nm laser is ________.

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