Molly is doing an experiment. She has two speakers set up d = 6.2 m apart. They each play the same tone. f = 462 Hz in phase. She starts at exact middle between the speakers and walks toward one of them. As she moves, she hears alternating loud and soft spots caused by constructive and destructive interference from the speakers. You may assume the speed of sound is 340 m/s. How far has she walked when she encounters the first loud spot cause by constructive interference? X1 = How far are the next two incidences of constructive interference? X2 = X3 = m E
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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