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प्रश्न
In a filament type light bulb, most of the electric power consumed appears as:
(a) visible light
(b) infra-red-rays
(c) ultraviolet rays
(d) fluorescent light
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उत्तर
infra-red rays
This is so because of the heat produced when a filament type light bulb glows.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
