Which of the following is used for drying of clothes a) ultraviolet rays b) infrated rays c) visible light d) all of these
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Answer:b)infrared rays
Explanation:
Infra-red radiation comes immediately after the red light in the visible spectrum. Though it cannot be seen it can be felt in the form of heat. This very heat is required to evaporate the water in wet clothes to dry them. Therefore, heat energy in the form of infra-red radiation is responsible for the drying clothes.
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