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प्रश्न
Give reason for the following:
Infrared radiations are used as signals during war.
कारण सांगा
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उत्तर
Infrared radiations are used as signals during the war as they are not visible and they are not absorbed much in the medium.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Spectrum - EXERCISE - 6 (B) [पृष्ठ १४५]
