Question

Give reason why the bottom of utensils is painted black

Answer 1

Answer:

It is because of all the light rays that falls on it, black color reflects back the least amount and spectrum of light rays falling on it. So when a source of heat is applied to a body as black body reflects the minimum amount of heat and absorbs the majority part of it, so to increase the efficacy,bottom is coloured as black. It is another thing that black body releases the heat as readily as it absorbs heat!

That's all.

Hope it helps ya:)