Question

give application of black body and grey body​

Answer 1

Answer:

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Explanation:

The blackbodies are used for lighting, heating, security, thermal imaging, as well as testing and measurement applications. ... A blackbody radiation source with a known temperature, or, whose temperature can be measured, is usually used for calibrating and testing the radiation thermometers

Answer 2

Explanation:

Black Body: a black body is an object that absorbs all the radiant energy reaching its surface from all the direction with all the with all the wavelengths. ... Gray body: A gray body is defined as a body whose absorptivity of a surface does not vary with variation in temperature and wavelength of the incident radiation.