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Question

What are audible and non-audible sounds?


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Solution

Step 1: Audible sounds:

  1. The human ear can detect sounds in the 20Hz-20KHz range.
  2. These are known as audible sounds. For example, music, instruments, and crackers.

Step 2: Non-Audible sounds:

  1. The human ear cannot hear frequencies lower than 20Hz or higher than 20KHz.
  2. These are sounds with wave frequencies less than 20Hz, which is the normal lower human hearing limit.
  3. Communication sounds are made by animals such as whales, elephants, giraffes, and rhinos.

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