Particulate Nature of Matter B.1 Thermal Energy Transfers (id: 7465eeede)

本题目来源于试卷: Particulate Nature of Matter B.1 Thermal Energy Transfers，类别为 IB物理学

[填空题]
1.An object X of surfacgqx 3z4q)+ 1fczx 0 ;jwu1fky*kft2um e au 9d,rb ) jf5+khx5dxirea $24.3\,cm^2$ emits 300W of radiation when its temperature is 1215K.
(1)State what is meant by emissivity.
(2)Show that this object is a blackbody radiator. e ≈   
2.Calculate the peak wavelength of the emitted radiation. $λ_{max}$ =    $\times10^{-6}\,m$
3.The object X is left to cool down until it reaches 800K. On the axes given, sketch the variation of intensity with wavelength of the radiation of object X at both the original 1215K and the cooler temperature of 800K. Label the graphs.

参考答案:
空格1: 1±2%  空格2: 2.39±2% 


本题详细解析:

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