Question

explain the different reflection from a smooth surface Rough surface​

Answer 1

Light reflects from a smooth surface at the same angle as it hits the surface. For a smooth surface, reflected light rays travel in the same direction. This is called specular reflection. For a rough surface, reflected light rays scatter in all directions. This is called diffuse reflection.Diffuse Reflection makes us see an objects from all direction.

Answer 2

Different reflection from a smooth surface Rough surface​

Explanation:

• When a light ray (you can think of it as a particle, or a very small wave, they both work) hits a reflective surface, it is reflected back at an angle equal to the incident angle, with respect to the normal. The normal is the perpendicular at the specific point on the surface where the light ray happened to hit.

• With a smooth surface, when your eye sums the light rays being reflected back at it from an area of the surface, they all tell the same story. In particular, your eye is able to discern an image that is partly made up of the object that is doing the reflecting, and partly of the object that is doing the emitting. In short, you can make out a reflection.

• With a rough surface, when your eye sums the light rays coming in to it, they are coming from all different parts of the surface, reflected at all sorts of angles. Each point on the surface is reflecting its light rays off in a different direction to each of the neighbouring points. The reflection is chaotic, and discernible to the eye as noise. Thus the eye still makes out the object that is doing the reflecting, but has little information about the object that is doing the emitting.

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