Question

Two guitars are in tune. They each play the same notes together. What would happen if one guitar slowly has its strings tightened? A) The harmonic sound will get lower in frequency. B) The sound gets larger due to constructive interference. C) The two sounds will refract and reach you at different times. D) Repeated louder and softer sounds will be heard due to varying interference.

Answer 1

D. repeated louder and softer sounds will be heard due to varying interference. Hope it helps :)