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1. |
The emissivity and the absorptivity of a real surface are equal for radiation with identical temperature and wavelength. This law is referred to as |
A. | Kirchhoff’s law |
B. | Lambert’s law |
C. | Planck’s law |
D. | Wein’s displacement law |
Answer» B. Lambert‚Äö√Ñ√∂‚àö√ë‚àö¬•s law | |