Electromagnetic Spectrum Flashcards
1
Q
Order (increasing frequency)
A
Radioactive Microwaves Infrared Visible light Ultraviolet X-rays Gamma Rays
2
Q
Radioactive
A
10^-1 to 10^6
Pass through matter
Radio transmissions
3
Q
Microwaves
A
10^-3 to 10^-1
Mostly pass through but cause some hearing
Radar, TV, cooking
4
Q
Infrared
A
7x10^-7 to 10^-3
Absorbed causing hearing
Heat detectors, night vision, remote controls
5
Q
Visible Light
A
4x10^-7 to 7x10^-7
Absorbed
Human sight
6
Q
Ultraviolet
A
10^-8 to 4x10^-7
Absorbed, some ionisation
Sun beds
7
Q
X-rays
A
10^-13 to 10^-8
Mostly pass through, cause ionisation as pass
Kill cancer
8
Q
Gamma rays
A
10^-16 to 10^-10
Pass through and cause ionisation
Kill cancer, sterilisation of medical instruments
