- #1

lafalfa

- 15

- 0

**Two speakers, A and B, are located at x = +0.5 m and x = -0.5 m. A 680 Hz signal is sent to both speakers. You then walk around the origin, x = 0, in a circle of radius 5.0 m. v_sound = 340 m/s**

If you walk once around the complete circle, how many intensity maxima do you hear?

If you walk once around the complete circle, how many intensity maxima do you hear?

This is what I did: m*wavelength = path difference

Since the maximum path difference is 1.0 m and the wavelength is 0.5 metres, m can only be 0 or 1 or 2. This corresponds to 6 points on the circle (2 points per value of m).

Is this the correct way of doing this question?

The correct answer is 8, not 6, and I don't know where the extra 2 points come from!

Please help me. Thank you very much!