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प्रश्न
Which is not a correct statement regarding infrared rays?
पर्याय
They produced heating effect when absorbed by matter.
They strongly affect photographic plate even when wrapped in black paper.
They can cause skin burns.
They are easily absorbed by glass.
MCQ
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उत्तर
They strongly affect photographic plate even when wrapped in black paper.
Explanation:
Infrared rays produce a heating effect and a high dose may cause skin burns. Ordinary photographic films are not affected by them, so the claim about strongly affecting a photographic plate is incorrect.
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