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EM Spectrum

The whole orderly range of frequencies/wavelengths of the EM waves is known as the EM spectrum.
 
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Fig. 6
 
Table 1 Uses of EM Spectrum
 
Radiation
Uses
γ -rays
Gives informations on nuclear structure, medical treatment, etc.
X-rays
Medical diagnosis and treatment study of crystal structure, industrial radiograph.
UV- rays
Preserve food, sterilizing the surgical instruments, detecting the invisible writings, finger prints, etc.
Visible light
To see objects.
Infrared rays
To treat, muscular strain for taking photography during the fog, haze, etc.
Micro wave and radio wave
In radar and telecommunication.




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