Questions
The phase difference between two points separated by 1m in a wave of frequency 120 Hz is 90o . The wave velocity is
a
180 m/s
b
240 m/s
c
480 m/s
d
720 m/s
detailed solution
Correct option is C
Path difference Δ=λ2π×φ⇒1=λ2π×π2⇒λ=4mHence = v=nλ=120×4=480 m/sTalk to our academic expert!
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The relation between phase difference () and path difference () is
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