Question 53
Echoes are sound waves that have bounced off a reflective surface and returned to the listener. In very large spaces, the reflected sound is delayed long enough that we hear it as a repeat of the sound. This is called an echo (see Figure 11.34).
When the original sound wave and reflected sound wave meet, interference occurs.
How do both types of interference affect the loudness of the sound?
When the original sound wave and reflected sound wave meet, interference occurs.
How do both types of interference affect the loudness of the sound?
