HEY❤❤
SOUND IS PRODUCED WHEN A BODY UNDERGOES TO-AND-FRO MOVEMENT . HOWEVER,NO SOUND IS PRODUCED WHEN A PERSON WAVES HIS/HER HAND . WHY?❤❤
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DEAR SOUND IS EVEN PRODUCED WHEN WE WAVE OUR HANDS,BUT RANGE OF THAT SOUND IS NOT IN THE RANGE 20HZ TO 20000HZ ,SO U CAN'T HEAR THAT BUT THAT CAN BE DETECTED BY SOME APPARATUS ....
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TUSEN TAKK
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HLO LIL FRND ❣️
heres your answer
The sound heard my a human is in the range of 20Hz to 20000Hz
Hertz is the unit of frequency
And frequency is the number of vaibrations a body undergoes in 1 second.
so , if we can vibrate our hand in between the range of 20-20000Hetrz , we could hear the sound produced.
as it is not possible , we could not hear the sound produced during vibration of our hand.
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