Sound 8.10: Additional Problem 1

Left Right Both

Description

The animation above shows the resultant sound wave pattern from two sources, each of which can be turned on and off.

Question

Why are there no dead spots in the sound distribution when either the left or the right source is transmitting but there are multiple dead spots when both sources are transmitting?

Answer

Wave superposition produces interference effects.

Reference

See Giancoli-PA: 12-7, Giancoli-SE: 16-7.

Credits

Physlet problem authored by Wolfgang Christian.

2000 by Prentice-Hall, Inc. A Pearson Company