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If the velocity of sound in air is 336m/*,the maximum length of a closed pipe that would produce just audible sound is
+3
votes
asked
Mar 24, 2019
in
JEE
by
kratos
A) 4.2m
B)1.2m
C)4.2 cm
D)1.2cm
waves
sound
csat
class-8
class-11
optics and sound
jee
class-9
jee mains
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1
Answer
+6
votes
answered
Apr 21, 2020
by
kratos
Best answer
Minimum audible frequency = 20 *H*
z
v
4
l
=20⇒
l
=3364×20=4.2
m
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