Question

.(b) In a beam of sunlight entering a room, we can sometimes see dust particles moving in a haphazard wayin the air. Why do these dust particles move? mera question ka koi to answer de do​

Answer 1

Sometimes, when a beam of sunlight enters a room, we can see tiny dust particles suspended in air which are moving rapidly in a very haphazard way. The tiny dust particles move here and there because they are constantly hit by the fast moving particles of air. ... It's due to the scattering of sun light....