Question

explain emissivity ​

Answer 1

Answer:

Emissivity is defined as the ratio of the energy radiated from a material's surface to that radiated from a a perfect emitter, known as a blackbody, at the same temperature and wavelength and under the same viewing conditions. ... Radiation thermometers detect the thermal radiation emitted by a surface.

Answer 2

Answer:

here is your answer...

Emissivity is defined as the ratio of the energy radiated from a material's surface to that radiated from a a perfect emitter, known as a blackbody, at the same temperature and wavelength and under the same viewing conditions. ... Radiation thermometers detect the thermal radiation emitted by a surface.

hope it helps you...

Explanation:

Please mark me the brainliest.