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Sound
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If V
1,
V
2
and V
3
are the velocities of sound in steel, water and vacuum respectively, which one of the following relations is correct ?
V
1
< V
2
< V
3
V
1
< V
2
+ V
3
V
1
= V
2
= V
3
V
1
. V
2
. V
3
= 0
Correct Option:
D
NA
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