why EM is a non mechanical wave....❣
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As a mechanical wave travels through a medium, it loses energy to the medium. ... Non-mechanical waves are waves that do not require a medium for the transfer of their energy to occur. Electromagnetic waves are the only type of non-mechanical waves. They can travel through the vacuum of space.
Type of radiation: Range of wavelengths
Visible light: 700 to 400 nm
Infrared radiation: 10-3 down to 10-7 meters
Gamma rays: shorter than 10-12 meters
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Electro magnetic waves don't require any medium to travel and can travel in vacuum. Hence EM waves are non mechanical waves
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