infrared rays are types of electromagnetic wave nature of light outside the visible wavelengths of infrared light beams large infrared .song be created easily by creating oscillators for specialized infrared emitting diode true . Infrared therefore be applied in many fields .tia with essentially infrared electromagnetic wave reflectivity so we can see the surface as possible. card applications have this feature to detect objects, infrared sensors will emit infrared rays. then based on reflected signals, it will analyze whether there is movement or not. also for the living body, does not work in the reflex, it has detected the appearance of a living body. because the body is self-radiant heat, and sensors also obtain this radiation
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