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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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