Electromagnetic Spectrum

Electromagnetic Spectrum - all transverse waves, all travel at speed of light, c, (3x10^8m/s) in a vacuum.

Radio Waves           Longest Wavelength; Lowest Frequency; Smallest Energy

Microwaves 

Infra-red (IR) 

Visible Light  

Ultraviolet (UV) 

X-rays 

Gamma Rays        Shortest Wavelength; Highest Frequency; Biggest Energy

Examples of uses: 

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