Question

what is irregular reflection??????? ​

Answer 1

When parallel incident rays fall on a rough surface the reflected rays do not remain parallel to each other, but get scattered over a wider surface. Such reflection is called irregular reflection.

Answer 2

Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection.