Question
We can see objects when the light is reflected from the objects and it falls upon our eyes. Why can't walls act as a mirror since even walls reflect light which falls on our eyes? [3 MARKS]
Answer:
:
Shiny Objects as Mirrors: 1.5 Marks
Walls as Mirrors: 1.5 Marks
In mirrors, when light falls on them, the reflected rays are still parallel since the shiny surfaces are very smooth and hence the reflected rays of light reach our eyes. Mirrors also reflect most of the light that falls on them. That's why we can see objects through the mirror or any shining surface.
Walls surface are rough. When light falls on rough surfaces, the reflection of light is much more dispersed and irregular. Rough surfaces like walls reflect only a part of the light that falls on them. Since all the reflected rays do not reach our eyes, we cannot see any image and due to this, walls do not act asmirrors.
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:
Shiny Objects as Mirrors: 1.5 Marks
Walls as Mirrors: 1.5 Marks
In mirrors, when light falls on them, the reflected rays are still parallel since the shiny surfaces are very smooth and hence the reflected rays of light reach our eyes. Mirrors also reflect most of the light that falls on them. That's why we can see objects through the mirror or any shining surface.
Walls surface are rough. When light falls on rough surfaces, the reflection of light is much more dispersed and irregular. Rough surfaces like walls reflect only a part of the light that falls on them. Since all the reflected rays do not reach our eyes, we cannot see any image and due to this, walls do not act asmirrors.
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