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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 mirror since even walls reflect light which falls on our eyes?  [3 MARKS]


Solution

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. 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 spread out. Since, all the relfected rays do not reach our eyes, we cannot see any image and due to this, walls do not act as mirror.


Physics

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