(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Hello, If one can see the image I posted, the question that follows is this: Use the information provided to obtain a value for the wavelength of sound emitted. The signal is at maximum intensity at X, and minimum at Y.

http://uploads.im/7wJOq.jpg

2. Relevant equations

Now I know that the wavelength equation isv = f • λ, but in this case I don't have the frequency nor speed, so I have to use the lengths given to find the wavelength.

I know in Young's double slit experiment, the wavelength is: {Fringe Separation x Slit separation / Source to screen distance}.

3. The attempt at a solution

I believe after observing this diagram, the solution will be similar, as there is source to screen distance involved, but there are no fringes or slits as this is sound we are dealing with. I now know that the path difference is the difference in distance from the sources to the point, in this case Y, which will be 0.12m.

But I am still stuck, I don't know how to calculate the wavelength even using the phase difference formula because for that the wavelength is needed in the first place.

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# Homework Help: Wavelength of Sound

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