how does the two kinds of reflection obeys the law of reflection?
thee two kinds of reflection are:
(1) regular reflection(on smooth surface) and
(2) irregular reflection(on rough surface)
one thing that you must know that 'laws of reflection are defined for A POINT, NOT FOR A SURFACE'. These are valid for a plane mirror as well as for a spherical mirror. on rough surfaces also, A light ray ,microscopically, falls over a point thus every point reflect it, obeying the laws.
Hope you satisfied!!