Polarisation Flashcards
1
Q
What is meant by a plane-polarised wave?
A
Waves in which the direction of vibration is the same for all waves
2
Q
What is the effect of polarisers on light?
A
A polarizer aligned to pass light oriented in the x-direction will filter out all the components in the y-direction.
3
Q
What is the effect of analysers on light?
A
They act as a detector of polarised light
4
Q
How does a reflected ray become polarised?
A
When a ray of unpolarised light is incident on the surface of an insulator at Brewster’s angle
5
Q
What is polarisation using filters?
A
Light can be linearly polarised when the vibrations in all planes bar
one are absorbed.
