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Q. Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
(a) What is the wavelength of the sound waves from the sources?
(b) What is the frequency of the sources?
(c) At what other angles is constructive interference heard? Enter a 0 (zero) in any unused answer blank.
θ3 = radθ4 = radθ5 = radθ6 = radθ7 = rad
(d) What is the smallest angle for which sound waves cancel?
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