Two sound sources oscillate in phase with a frequency of 100Hz. At a point 5 m f

Question

Two sound sources oscillate in phase with a frequency of 100Hz. At a point 5 m from one source and 5.85 m from the other,the amplitude of the sound from each sourceseparately A. a) What is the phase difference in sound waves from the twosources at that point? b) What is the amplitude of the resultant wave at thatpoint? Two sound sources oscillate in phase with a frequency of 100Hz. At a point 5 m from one source and 5.85 m from the other,the amplitude of the sound from each sourceseparately A. a) What is the phase difference in sound waves from the twosources at that point? b) What is the amplitude of the resultant wave at thatpoint?

Explanation / Answer

(a) phase difference =   2 r/ = .           = 2* 0.85 / (v / f) = 1.7 * 100 / 343 =    1.557radians . (b) amplitude of resultant wave =   2Acos /2 = 2A cos (1.557/2) = .            =    1.424 A

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