2. Sample Papers
  3. Railways
  4. General Science & Technology
  5. Sound

Railways General Science & Technology Sound Sample Paper Sound Sample Test Paper-5

  • question_answer
    Frequency range of the audible sounds is

    A)  0 Hz - 30 Hz

    B)  20 Hz - 20 kHz

    C)  20 kHz - 20,000 kHz

    D)  20 kHz - 20 MHz

    Correct Answer: B

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