First slide

Travelling wave

Question

Two sound waves having a phase difference of 60° have path difference of

Easy

A

$2 λ$
B

$λ / 2$
C

$λ / 6$
D

$λ / 3$

Solution

Path difference $Δ = \frac{λ}{2 π} \times φ = \frac{λ}{2 π} \times \frac{π}{3} = \frac{λ}{6}$

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