waves Flashcards
1
Q
phase
A
how far through an oscillation a wave is
2
Q
path difference
A
difference in distance travelled by two waves, expressed as multiple of wavelength
3
Q
superposition
A
when two or more waves meet at a point to give resultant displacement
4
Q
coherence
A
when two waves have constant phase difference
5
Q
phase difference
A
fraction of oscillation by which one wave leads/lags behind the other
6
Q
what is necessary for interference patterns to occur
A
coherence
