Why cannot you smell its perfume at a short distance when incense stick is not lighted ?
The particles of the perfume (matter) do not have sufficient energy to drift through the air. Thus, a few steps away from incense stick, we cannot smell it.
How do we detect the smell of an agarbatti (incense stick)?
Explain why, when a bottel of perfume is opend in a room, we can smell it even from a considerable distance.