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

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

  • Option 1)

    \lambda

  • Option 2)

    \frac{\lambda}{2}

  • Option 3)

    \frac{\lambda}{6}

  • Option 4)

    \frac{\lambda}{3}

 
Answers (1)
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As we learnt in 

Relation between phase difference and path difference -

Phase difference \left ( \Delta \phi \right )

= \frac{2\pi }{\lambda }\times path \: dif\! \! ference\left ( \Delta x \right )\\\lambda =wave\; length

-

 

 Phase difference = \frac{2\pi}{\lambda} (path difference)

Path difference = \frac{\lambda}{2 \pi} (phase difference) = \frac{\lambda}{2\pi}\times (\frac{\pi}{3})\:=\:\frac{\lambda}{6}

 


Option 1)

\lambda

This option is incorrect.

Option 2)

\frac{\lambda}{2}

This option is incorrect.

Option 3)

\frac{\lambda}{6}

This option is correct.

Option 4)

\frac{\lambda}{3}

This option is incorrect.

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