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

الخيارات

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