Define the frequency of this red colored visible light

Reference no: EM13208713

A DVD player uses a 640 nm laser beam to read the digital video data off a DVD disk. What is the frequency of this red colored visible light?

Reference no: EM13208713

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Define the frequency of this red colored visible light : laser beam to read the digital video data off a DVD disk. What is the frequency of this red colored visible light?

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