Miss Capaldi - Waves Flashcards
1
Q
What is coherence?
A
A fixed relationship between the phase of waves in a beam of radiation of a single frequency.
2
Q
What is path difference?
A
The difference in distance travelled by two waves at the meeting point.
3
Q
What is phase difference?
A
The amount in which one wave “lags” behind another
4
Q
What is destructive interference?
A
Where two or more waves cancel each other out producing a minimum amplitude
5
Q
What is constructive interference?
A
Where the amplitude of two or more waves add up to produce a maximum amplitude wave
6
Q
What is superposition?
A
The adding of two wave displacements occurring when waves from different sources overlap
