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13. Sound
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Q5 of 54 Page 389

What is the audible range for a normal human being?

The audible range of a normal human being is 20 Hz to 20 KHz.


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3

What is SONAR?

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Sound is produced by a vibrating source. Why then a vibrating pendulum does not produce any sound?

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Give Reasons for the Following:

Why sound waves are called mechanical waves?

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Give Reasons for the Following:

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Questions · 54
13. Sound
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