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Why is the wavelength of light used to read data on DVD's smaller than the minimum pit length? - Quora
Why is the wavelength of light used to read data on DVD's smaller than the minimum pit length? - Quora
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SOLVED:The data encoded on CDs, DVDs, and Blu-ray discs is read by lasers. What is the wavelength in nanometers and the energy in joules of the following lasers? (a) CD laser, ν=3.85 ×
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Laser diodes from CD-RW drives can cut and burn!
Why is the wavelength of light used to read data on DVD's smaller than the minimum pit length? - Quora
Lasers in Consumer Electronics: The Optical Pickup
