Uses of electromagnetic waves Flashcards
1
Q
Main use of radio waves
A
Communications-due to their long wavelengths (1-10km) they can be curved around the Earth
2
Q
Main uses of microwaves
A
Satellite communications and preparing food
3
Q
Main use of infrared radiation
A
Heating and to monitor temperature
4
Q
Main uses of visible light
A
1) Optical fibers (due to total internal reflection)
2) Photography
5
Q
Main use of ultraviolet light
A
Fluorescent lamps
6
Q
Main use of x-rays
A
Letting us see inside things
7
Q
Gamma radiation
A
1) Sterilizing medical instruments by killing all bacteria
2) Sterilizing food so it stays fresh for longer
