A

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Q. Infrasonic sound has a frequency lower than

  • (A) 5 Hz
  • (B) 15 Hz
  • (C) 20 Hz
  • (D) 32 Hz
  • Correct Answer - Option(C)
  • Views: 12
  • Filed under category Physics
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Explanation by: Admin
Infrasonic Sound has a frequency less than the audible frequency range. Frequencies are less than 20 Hz. The infrasonic sounds have below the lower limit of human hearing.

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