Question

define radiation and radiant heat shown by a simple experiment that a black body are good heat absorber than white bodies ​

Answer 1

Answer:

As we know white surface reflects all the lights whereas black surface absorb almost every wavelength of light so energy trapped into it that's why black body is good heat absorber than white body

Answer 2

$\huge\underline\mathfrak\purple{Question}$

Describe an experiment to show that a black (or dull) surface is a better absorber of heat radiations than a polished one.

$\huge\underline\mathfrak\purple{Answer}$

When heat radiation fall on polished surface or white objects, most of the heat energy is reflected black but when these heat energy are absorbed and very less amount of energy is reflect back apart from this black body absorbs more heat because black colours absorbs all colours of light energy, the more light is absorbed, the more heat will be absorbed.

$\huge\underline\mathfrak\purple{Bts}$