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प्रश्न
How are infrared waves produced?
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उत्तर
Infrared waves are adjacent to the low-frequency or long-wavelength end of the visible spectrum. They are produced by hot bodies and molecules.
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संबंधित प्रश्न
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(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
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