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electromagnetic spectrum - Coggle Diagram
electromagnetic spectrum
properties of EM WAVES
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They obey the laws of reflection and refraction.
When EM waves travel from a vacuum into another medium, wave speed and wavelength change, but frequency remains constant (set by the source).
EM spectrum
Gamma rays , Xrays, Ultraviolet(UV) Visible light(VIBGYOR) Infrared(IR) Radio waves
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application of em waves
em waves: application
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Direct communications (radio, TV broadcasting)