Suppose that the two speakers in Figure 17.7 are separated by 2.50 m and are vibrating exactly out of phase at a frequency of 429 Hz. The speed of sound is 343 m/s. Does the observer at C observe constructive or destructive interference when his distance from speaker B is
(a) 1.15 m
(b) 2.00 m?

Transcribed Image Text:

3.20 m 90° 2.40 m