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In a radiative heat transfer, a gray surface is one Which appears gray to the eye Whose emissivity is independent of wavelength O which has reflectivity equal to zero Which appears equally bright from all directions QUESTION 11 The best ideal black body is O Lamp of charcoal heated to high temperature Metal coated with a black dye
Related Book For
Fundamentals of Heat and Mass Transfer
Authors: Incropera, Dewitt, Bergman, Lavine