Chemistry, asked by akbaruddinmultani, 5 hours ago

answer the question in the attachment​

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Answered by Anonymous
9

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Answered by armygirl1266
5

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Typically, prior to some process, such as transmission over cable, or recording to phonograph record or tape, the input frequency range most susceptible to noise is boosted. This is referred to as "pre-emphasis" – before the process the signal will undergo.

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