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Cd plyers
soulmann90
Posts: 1, Reputation: 1
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Nov 30, 2004, 06:53 AM
Cd plyers
What type of waves do portable compact disc plyers use
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urmod4u
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Nov 30, 2004, 07:14 AM
To read the disc?
Electromagnetic waves, in the infrared spectrum.
Commonly called "infrared waves".
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