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Q.

Rani can see her image in a new stainless-steel plate but cannot see her image in an old and worn-out stainless-steel plate because the surface is ____.


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Detailed Solution

Rani can see her image in a new stainless-steel plate but cannot see her image in an old and worn-out stainless-steel plate because the surface is rough.
When a light ray strikes a polished surface, it forms an image due to reflection. Still, when a light ray falls on a rough surface like worn-out stainless steel then, the image formation does not take place because of the rough surface, and that is the reason why Sonia cannot see her image in the old stainless plate but can see the image clearly in a new one.
 
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