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Question
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
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Solution
An average person can hear sound of frequencies in the range 20 Hz to 20 kHz.
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RELATED QUESTIONS
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
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| I | II |
 |
 |
| III | IV |
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