Question

Black surfaces are better ______________________ of heat than polished surfaces.

Answer 1

1. The emission and absorption of radiant heat depend on the colour possessed by the object. Black bodies are perfect absorbers and radiators of heat.
2. The best way to explain this is, consider you are wearing an item of dark coloured clothing during summer, due to absorption you will start to feel hotter under the harsh sun, whereas if you are wearing a light coloured clothing, the light is reflected by the cloth and thus you feel less hot as compared to the former.

Hence, the correct answer is: Black surfaces are better absorbers and radiators of heat than polished surfaces.