? asked in 科學及數學其他 - 科學 · 1 decade ago

radiation(20marks) (in hurry)

why wear light coloured clothes in summer?but black colour can emit heat from our bodies quickly.

2 Answers

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  • 1 decade ago
    Favorite Answer

    樓上既答案係岩

    不過我估佢唔明你想問咩

    你係唔係想講個environment 都有30度左右

    我地就37度,著黑色3,咪emmit得快點

    其實,真正係夏天,熱我地既係太陽

    而refer to definition of radiation

    1) all object radiate energy, whether they are hot or cold

    2) the hotter object radiate more energy

    3) If we are at a lower temperate than the object emmits radiation,

    4) we feel hotter when we absorb their radiation

    好明顯,SUN熱我地好多倍

    穿點有bad absorber原理既white shirt可以absorb少點radiation

    就可以冇咁熱→涼點

    相反係night or room到

    著black shirt 就emmit多點radiation

    →涼點

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  • hlyung
    Lv 7
    1 decade ago

    Light colored clothes absorb less heat than black colored clothes. Therefore, wearing light colored clothes can prevent absorbing heat from outside. However, wearing black color clothes can help absorbing heat from our body.

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