New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Two tuning forks produce 4 beats per second. If one has

    a frequency of 256 Hz, the frequency of the other is:
    A 252 Hz Correct Answer Incorrect Answer
    B 260 Hz Correct Answer Incorrect Answer
    C Either A or B Correct Answer Incorrect Answer
    D 254 Hz Correct Answer Incorrect Answer

    Solution

    Beats = |f1 − f2| ⇒ f2 = 256 ± 4 = 252 or 260 Hz.

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