Electromagnetic radiation
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The most common example of electromagnetic (EM) radiation is visible light.
It is called electromagnetic because there are electric and magnetic fields making up the
radiation.
Wave like nature of EM radiation
Fields
B - magnetic
field
90 degrees to
each other
E - electric field
Electromagnetic spectrum
EM radiation is classified into types according to the frequency of the wave: these types include, in
order of increasing frequency, radio waves, microwaves, infrared radiation, visible light, ultraviolet
radiation, X-rays and gamma rays.
10^-9
lowest f to highest f
ROYGBIV
red
orange
yellow
green
blue
indigo
violet
Particle like nature of EM radiation
Activity