As the sound wave propagates from one place to the other in air the air itself is not required to move from one place to the other
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Ans: i. A sound wave propagates in the form of
compression and rarefaction.
ii. When a compression is formed, compressed air
molecules transfer their energy to air molecules in
next region without leaving their positions.
iii. As a result, air molecules in next region get
compressed and transfer energy further in the same
manner.
iv. Meanwhile, a rarefaction gets formed and moves
forward in the similar way.
v. As a combined effect, air molecules propagate
sound wave without actual movement.
Hence, during propagation of sound wave in air
from one place to another, air itself is not required
to move.
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