defining waves Flashcards
1
Q
what is a longitudinal wave
A
where the wave propagation is in the same direction as the particle oscillation
2
Q
what is a transverse wave
A
where the wave propagation is perpendicular to the particle oscillation
3
Q
when are two waves completely out of phase?
A
at 180 degrees or pi radians
4
Q
what is path difference?
A
the difference in distance travelled by two waves going from the same starting point to the same ending point.
5
Q
what are the two polarisations?
A
vertical and horizontal
6
Q
if all of a light source has one polarisation (all vertical or horizontal) what happens
A
it becomes polarised light
