Question

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Answer 1

$\huge\pink{answers}$

A. Diffused Reflection

B. Rough Surface

C. Yes

D.sandpaper, rough fabric like corduroy, bumpy rock (any 2)

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$\huge\pink{explanation}$

A. Types of Reflection of Light

Different types of reflection of light are briefly discussed below:

1. Regular reflection is also known as specular reflection
2. Diffused reflection
3. Multiple reflection

$\green{Specular \: Reflection}$

Specular Reflection refers to a clear and sharp reflection, like the ones you get in a mirror. A mirror is made of glass which is coated with a uniform layer of a highly reflective material such as powder. This reflective surface reflects almost all the light incident on it uniformly. There is not much variation in the angles of reflections between various points. This means that the haziness and the blurring are almost entirely eliminated.

$\green{Diffused \: Reflection}$

Reflective surface other than mirrors, in general, has a very rough finish. This may be due to wear and tear such as scratches and dents or dirt on the surface. Sometimes even the material of which the surface is made of matters. All this leads to a loss of both the brightness and the quality of the reflection. In the case of such rough surfaces, the angle of reflection when compared between points is completely haphazard. For rough surfaces, the rays incident at slightly different points on the surface is reflected in completely different directions. This type of reflection is called diffused reflection and is what enables us to see non-shiny objects.

$\green{Multiple \: Reflection}$

A single image is formed when an object is placed in front of a mirror. What happens if we use two mirrors? Since reflective surfaces such as mirrors are very good at preserving the intensity of light in a reflection, a single source of light can be reflected multiple times. This multiple reflection is possible until the intensity of light becomes low until the point that we cannot see. This means that we can have almost infinite multiple reflections. We can also see an image at every individual reflection. This means that each image is the result of an image or an image of an image. The number of images we see is dependent largely on the angle between the two mirrors. We see that as we go on decreasing the angle between the mirrors, the number of images goes on increasing. And when the angle becomes zero, i.e., when the mirrors become parallel to each other, the number of images becomes infinite. This effect can be easily observed when your barber uses another smaller mirror to show you the back of your head. When this happens, not only do you see the back of your head, you also see innumerable images of yourself. The variation of the number of images of an object placed between two mirrors with the angle between the mirrors can be described by a simple formula:

$number \: of \: images = \frac{360}{angle \: between \: mirrors}−1$

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C. Yes it does . In diffused reflection light rays are not parallel to each other. Diffused reflection does not mean the failure of laws of reflection. Diffused reflection occurs when the surface is rough , also the angle of incidence chages from one ray to another.

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