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4 January, 13:50

In winter time when the drapes are opened for energy efficiency, the most important type of radiation that is allowed is

a. UV radiation

b. IR radiation

c. visible light

d. X rays

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Answers (1)
  1. 4 January, 16:57
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    Option B

    IR radiation

    Explanation:

    Infrared radiation is preferred since they have longer wavelengths compared to those of visible lights although shorter than those of radio waves hence for energy efficiency, IR radiation should be allowed during winter seasons when drapes are open for energy efficiency.
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