The effects of different wavelengths of sound on emotional states are fairly well documented and infrasound has been occasionally used in movies to set the audience on edge during some movie scenes. One example of such a movie is the very problematic 2002 French film Irréversible, which used a low-frequency sound at 27Hz to induce subtle feelings of nausea and anxiety during much of the movie.
(a) Assuming air at STP, what is the wavelength of this sound?
(b) How fast would a baritone singing a constant C_(2) musical note ( 65 Hz need to be traveling for a stationary person to hear the note used in the movie Irréversible? Are they traveling towards or away from the stationary observer?
3. The effects of different wavelengths of sound on emotional states are fairly well documented and infrasound has been occasionally used in movies to set the audience on edge during some movie scenes. One example of such a movie is the very problematic 2002 French film Irreversible,which used a low-frequency sound at 27 Hz to induce subtle feelings of nausea and anxiety during much of the movie.
(a) Assuming air at STP, what is the wavelength of this sound? (b) How fast would a baritone singing a constant C2 musical note (65 Hz) need to be traveling for a stationary person to hear the note used in the movie Irreversible? Are they traveling towards or away from the stationary observer?
