Breathe late at night on the window pane to fog up. Look through the resulting spot at the light from the lantern.

Breathe late at night on the window pane to fog up. Look through the resulting spot at the light from the lantern. Describe your observations and try to explain them

Particles of water on the misted glass reflect, refract and scatter the light falling on them from the object being reflected through the glass. You can see the colored rings if you look at the lantern – the phenomenon of diffraction.