State any three uses of ir rays, Physics

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Q. State any three uses of IR rays.

(a) Infrared lamps are utilized in physiotherapy.

(b) Infrared photographs are utilized in weather forecasting.

(c) As infrared radiations aren't absorbed by thick fog, air, mist and so on they are used to take photograph of long distance objects.

(d) Infra red absorption spectrum is utilized to study the molecular structure.


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