CBSE Class 9 Answered
Sound
Asked by Kanisk Agrawal | 19 Mar, 2014, 11:52: AM
Expert Answer
- The audible range of sound for human beings extends from about 20 Hz to 20000 Hz.
- Children under the age of 5 and some animals can hear up to 25 kHz.As people grow their ears become less sensitive to sounds of higher frequencies.
Answered by | 19 Mar, 2014, 11:59: AM
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