Question

advantages of irregular reflection​

Answer 1

Question :-

advantages of irregular reflection.$\:$

Explanation :-

Advantages of Irregular Reflection

1. Any opaque object is visible to us due to irregular reflection.
2. When a movie is projected on the screen by a projector it is viewed from different seats in a hall is due to irregular reflection.

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Answer 2

Answer:

Irregular reflection, or diffusion, consists of reflection in which the reflected rays of light are not parallel but take various directions, thus destroying the image of the light source. Rough, unpolished surfaces give such reflection. Smooth, unpolished surfaces generally give a combination of two kinds of reflection.

Diffused reflection is very important in the study of illumination inasmuch as diffused light plays an important part in the lighting of interiors. This form of reflection is seen in many photometer screens.

Light is also diffused when passing through semi-transparent shades or screens. In considering reflected light, we find that, if the surface on which the light falls is colored, the reflected light may be changed in it nature by the absorption of some of the colors. Since, as has been said, in interior lighting the reflected light forms a large part of the source of illumination, this illumination will depend upon the nature and the color of the reflecting surfaces.

Whenever light is reflected from a surface, either by direct or diffused reflection, a certain amount of light is absorbed by the surface. Table XIII gives the amount of white light reflected from different materials.