SOURCES, DETECTORS AND USES OF ELECTROMAGNETIC WAVES
Short notes by Komolafe Daisi Israel
E-mail :- comlafe2004@yahoo.com
ELECTROMAGNETIC SPECTRUM: THE MEMBERS, IN DECREASING and DECREASING ORDER OF WAVELENGTH AND FREQUENCY RESPECTIVELY IS CODED hither AS R I V U X - G
R = wireless WAVES
I= INFRA-RED
V = VISIBLE RAYS (MEMBERS are CODED INTO R O Y G B I V , ALSO IN THE SAME ORDER AS IN ABOVE. R stands for red light, O for Orange, etc.)
U = ULTRA-VIOLET
X = X-RAYS
G= GAMMA RAYS
NOTE: MICROWAVES ARE SHOT WAVELENGTH RADIO WAVES. A go bad band may be created for it betwixt tuner waves and infrared, but since they are radio waves, such separate band is not necessary.
| |waves |sources |detector |uses |
|1 | radio waves |Radio and TV |Radio aerial |Communications through radio and TV |
| | |transmitting antenna, | |Telephone links |
| | |galaxies and stars | |Microwaves for cooking forage |
|2 | infrared radiation |Hot objects, electric |Special films |Infrared remote control |
| | |fire, the sun |Skin. |Heating |
| | | |Blackened thermometer | winning temperature picture ( in infrared |
| | | |Electronic detectors |camera) |
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