What affect does reflection have upon a wave? Does reflection of a wave affect the speed of the wave? Does reflection of a wave affect the wavelength and frequency of the wave? Does reflection of a wave affect the amplitude of the wave? Or does reflection affect other properties and characteristics of a wave's motion? The behavior of a wave (or pulse) upon reaching the end of a medium is referred to as boundary behavior. A sound wave traveling through air within a canyon reflects off the canyon wall and returns to its original source.
A sound wave is known to reflect off canyon walls and other obstacles to produce an echo. One example of this has already been mentioned in Lesson 2. As a wave travels through a medium, it will often reach the end of the medium and encounter an obstacle or perhaps another medium through which it could travel.
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