Question

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?❤❤
DON'T COPY .....
DON'T POST IRRELEVANT ANSWER ❣​

Answer 1

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 ....

HOPE IT WILL SATISFY UH ...

TUSEN TAKK

Answer 2

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.