Radio Waves - Used for communication and to transmit entertainment signals , Microwaves - Used to heat food , Infared - Used in remote controls and detection of living things , Visible light - Can be deteced by the retina (the back of the eye), Ultraviolet - Used to detect forgery on bank notes, X rays - Used to detect broken bones and to scan luggage at airports , Gamma rays - Used for sterilisation ,

Electromagnetic Spectrum

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تضمين

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النمط البصري

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