Question

3. Guitar string, human vocal cords, diaphragm of a loudspeaker, whistle, frequency
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Answer 1

Frequency of guitar string: 110 Hz

Frequency of human vocal cord: 125 Hz

Frequency of diaphragm of a loudspeaker: 20 Hz (lowest) 20 kHz (maximum)

Frequency of a whistle:  Depends ( 70-200 Hz, for a vessel 200 meters or more in length; 130-350 Hz, for a vessel 75 meters but less than 200 meters in length; 250-700 Hz, for a vessel less than 75 meters in length.)

Hope this is what you want.

Answer 2

Answer:

Frequency

Explanation:

others are source of sound while frequency is the total number of waves produced in one second.