Question

A gas absorbe photon of wavelength 400nm,and emit at 2lemda.if one of the emition as 600nm,thn another is at.......?​

Answer 1

This kind of phase change--liquid to gas--is called evaporation or vaporization. Water vapor can in turn be cooled to form liquid water. This kind of phase change--from gas to liquid--is referred to as condensation. ... Some gases can be cooled down and changed directly into a solid..