本题目来源于试卷: gc textbook chater 14 heat，类别为 IB物理学
[问答题]
Explain why air temperature t-;0vtqtbm7/r i1 dgjreadings are always t vjtgm( cv enweq -k:,/5(1p*kxv:iubaken with the thermometer in the vmkki nwxu:((tv* 1j-5:vpg, /eqc beshade.
参考答案:
A thermometer in the direct sunlight would gain
thermal energy (and thus show a higher temperature) due to receiving radiation
directly from the Sun. The emissivity of
air is small, and so it does not gain as much energy from the Sun as the
mercury and glass do. The thermometer is
to reach its equilibrium temperature by heat transfer with the air, in order to
measure the air temperature.
本题详细解析:
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