Summary GCE GCSE IGCSE Secondary School High School Physics - Electromagnetic Spectrum

IGCSE Physics\Electromagnetic Spectrum\Important Concepts


IGCSE PHYSICS
ELECTROMAGNETIC SPECTRUM: IMPORTANT CONCEPTS



The electromagnetic spectrum is made up of electromagnetic waves, which are
waves consisting of an electric field and a magnetic field vibrating perpendicularly to
each other.




The electromagnetic spectrum:

Wavelength/ Frequency/
m Hz Source Detection

-15
10
1023
Cosmic rays, radioactive Geiger-Muller tube,
decay, nuclear reactions photographic film
10-13
1021
Photographic film,
10-11 X-ray tubes
19 fluorescent screen
10


10-9 Photographic film,
Mercury vapour lamps,
fluorescent screen, dye,
1017
the sun
photocell
-7
10 Hot bodies, the Sun The eye, photographic
1015
film, photocell

10-5 Photoconductive cell,
Warm bodies, the Sun
1013 special photographic film

-3
10
1011 Valve circuit arranged as
Klystron tube microwave receiver
10-1
109

10
107
TV and radio transmitter Aerial of TV and radio
103 receiver
105

105
103

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