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Pick out the wrong statement: | |
A. | With change in temperature, the radiant energy emitted by a black body remains unchanged. [Correct Answer] |
B. | Absorptivity of a body approaches unity in case of diffuse reflection. [Wrong Answer] |
C. | Absorptivity of a perfectly black body is unity. [Wrong Answer] |
D. | Value of Stefan-Boltzman constant is 4.876 x 10-8 KCal/m2.hr.°K4. [Wrong Answer] |