Questions
Find the frequency of minimum distance between compression & rarefaction of a wire. If the length of the wire is 1m & velocity of sound in air is 360 m/s
a
90 sec–1
b
180s–1
c
120 sec–1
d
360 sec–1
detailed solution
Correct option is A
The minimum distance between compression and rarefaction of the wire l=λ2 ∴ Wave length λ=2l Now by v=nλ⇒n=3602×1=180sec−1.Talk to our academic expert!
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