Question

Why black absorbes heat faster and loses heat faster?

Answer 1

We Know that a black body absorbs all colours of light falling on it hence it appears to be black .

Let me explain why do we see objects as blue , green , etc

When we consider a carrot we see it red in colour why so ? because when light falls on carrot the carrot absorbs all colours of light ad reflect only red colour this red colour of light falls on eyes hence we see the carrot as red in colour .When a body absorbs all colours of light we don’t get any reflected colour hence we see that body as black in colour .

Here as the black body absorbs all colours light it gets heated up fast than other object . We know that energy is associated with light so when this light is absorbed by a black the energy cant simply vanish away but in turn it heats the black body

And black body cant keep all the heat absorbed by it for a longer time it radiates the heat absorbed . Hence due to this radiation the bdoy cools down faster than any other object

Note :- A Black body doesn’t absorb all colours of light it reflects some amount of light which is very little as compared to absorbed light

Hope this helped u

:-)