What is irregular reflection?

Define irregular reflection of light.

Statement I : Due to diffused of irregular reflection of light, a closed room gets light even if no direct sunlight falls falls inside the room. Statement II : Irregular reflection, where the reflected rays are not parallel, does not follow the laws of reflection.

What is meant by reflection of light ?

What is partial reflection of light ?

(a) What is meant by 'reflection of sound'? What type of surfaces are the best for reflecting sound? (b) Name any two objects which are good reflectors of sound. (c) State the laws of reflection of sound.

What is reflection?