Does diffused reflection mean failure of the laws of reflection?
No diffused reflection is not the falirue of the laws of reflection because the rays in questions get scattered in different directions due to irregularities in the surface on which it strickes and hence are unable to obey the laws of reflection.
P.S: From my point of view it's a falirue.
In diffused reflection, the reflected rays are not parallel to erach other for parallel incident rays. This happens due to microscopic irregularitied of the reflecting surface. Hence, the parallel incident rays reflect in different directions. However each individual ray obeys the laws of reflection. Hence laws of reflection do not get violated in diffused reflection.
Reflection of light from a rough surface which scatters it in all directions.
General mechanism of diffuse reflection by a solid surface
The angles will be equal since the Normal Ray for each incident ray will be different in such a case.
or each type of reflection, each individual ray follows the law of reflection. However, the roughness of the material means that each individual ray meets a surface which has a different orientation. The normal line at the point of incidence is different for different rays. Subsequently, when the individual rays reflect off the rough surface according to the law of reflection, they scatter in different directions. The result is that the rays of light are incident upon the surface in a concentrated bundle and are diffused upon reflection. The diagram below depicts this principle. Five incident rays (labeled A, B, C, D, and E) approach a surface. The normal line (approximated) at each point of incidence is shown in black and labeled with an N. In each case, the law of reflection is followed, resulting in five reflected rays (labeled A,, B,, C,, D,, and E,)