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      Question

      Two sound waves have frequencies 256 Hz and 260 Hz. The

      beat frequency is:
      A 4 Hz Correct Answer Incorrect Answer
      B 2 Hz Correct Answer Incorrect Answer
      C 256 Hz Correct Answer Incorrect Answer
      D 516 Hz Correct Answer Incorrect Answer

      Solution

      Beat frequency = difference = ∣260βˆ’256∣ = 4 Hz.

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