Multiple choice general knowledge

What is noise?

  1. Unwanted disturbances superposed on a useful signal

  2. Wanted disturbances superposed on a useful signal

  3. Both

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Noise in signal processing is defined as unwanted disturbances superimposed on a useful signal (option A). This interferes with the information we want to recover. Option B incorrectly states noise is 'wanted', which contradicts the definition.

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