Name the sounds of the following freqencies and define thema)10Hz b)60

1.	Name the sounds of the following freqencies and define thema)10Hz b)600Hz c)45000Hz
Answer» a) Infrasonic sound that is it cannot be heard. Can be heard by small animals. b) Audible sound that is it can be heard. It is in the range which human ear hears. c) Ultrasonic sound that is cannot be heard. It is used in sonography,etc..

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