Question

W 19 sound produced?
S
Ans. Samund.........bom... enako
eneros which
com
Lauatan.. haoline w oulhossa.....
*(2) If sound waves are generated 'in air, what moves away from the source. Is it the
compression and rarefaction created in the air?
Ans. ...Sound ware all allala
of corpsession and accelion...
c hes . Whom the...
(3) What do you feel when you touch a sound producing school bell?
a
Ans.......
Q.5. Give scientific reasons:
*(1) It is essential to change the tension on the vocal cords, as we produce different
larynx.
Ans. Different found notes costespand do
dequencies health cab.dchende
themeden... the oak colek be
essential to change the n .
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Molle lasin​

Answer 1

Explanation:

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