Question

Two sound waves having a phase difference of 60${}^0$ have path difference of

• A. 2$\lambda$
• B. $\lambda /2$
• C. $\lambda /6$
• D. $\lambda /3$

Answer 1

The correct option is C $\lambda /6$

The relation between phase difference and path difference is given by,

Phase difference $=\frac{2\pi }{\lambda }\times$ path difference

${60}^o=\frac{\pi }{3}=\frac{2\pi }{\lambda }\times$ path difference

Hence, path difference $=\frac{\lambda }{6}$