In which of the following conditions diffuse reflection takes place?
A
When a parallel beam of light is reflected by a plane mirror.
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B
When a parallel beam of light is reflected by a highly polished metal surface.
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C
When a parallel beam of light is reflected by a paper sheet.
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D
All of these
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Solution
The correct option is C When a parallel beam of light is reflected by a paper sheet. When all the parallel rays reflected
from a rough or irregular surface are
not parallel, the reflection is known as
diffused or irregular or diffuse reflection. Diffuse reflection occurs at rough surfaces like paper.