Question

proof
enclosures
?
Can
you
design
a
So
.
media. Explain ?
What do you understand by sound
ement
0.
de
of
sound proof box ?
es the
1.
* TEST CHECK
yourself
2.
m to
DO
1. Define Echo
3.
36. W
CE
12. Arrange in the increasing order solids,
gases and liquids as per speed of sound
ind
in segments (1), (2) and (3).
3
Its
2
d.
13. Mark compression (C) and rarefaction
(R) on the figure of slinky.
Sounu​

Answer 1

Answer:

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Answer 2

Answer:

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