Unformatted text preview: 12. Interference occurs when two or more waves combine to form a net wave. If the waves interfere constructively, their crests combine and their troughs combine to form a net wave of higher amplitude. If the waves interfere destructively, crests of one wave combine with troughs of another wave to form a net wave with lower amplitude. 14. When a wave (called an ”incident” wave) hits a barrier, it reﬂects back and interferes with the incident wave. You can think of this eFect as self-interference. At certain frequencies, stationary positions of zero amplitude (nodes) form. The positions of these nodes do not change with time. 1...
View Full Document
This note was uploaded on 10/19/2011 for the course PHY 2020 taught by Professor Staff during the Spring '08 term at University of Florida.
- Spring '08