to observe polarising effects using microwaves and light Flashcards
1
Q
What is a polaroid filter?
A
Plastic film with very long thin crystals to polarise light.
2
Q
What is a second filter called?
A
Analyser.
3
Q
What decreases and increases as the analyser rotates.
A
Intensity.
4
Q
What happens when the analyser’s crystals are perpendicular to the 1st filter’s.
A
0% relative intensity
5
Q
What do microwaves produced artificially tend to be?
A
Plane polarised.
6
Q
What is used to polarise microwaves?
A
Metal grille.
7
Q
Equipment used for polarisation of microwaves?
A
Microwave transmitter, metal grille, microwave receiver.
