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Explain Why, Though Both a Plane Mirror and a Sheet of Paper Reflect Light but We Can See the Image of Our Face in a Plane Mirror but Not in a Sheet of Paper. - CBSE Class 10 - Science

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Question

 Explain why, though both a plane mirror and a sheet of paper reflect light but we can see the image of our face in a plane mirror but not in a sheet of paper.

Solution

 This is because there occurs regular reflection from a plane mirror, which has a smooth surface. Since the particles of the smooth surface are facing one direction, a beam of parallel light rays falling on it is reflected as a beam of parallel light rays in one direction only. These rays meet when produced backwards to form a virtual image of the light source.
However, in the case of a rough paper, a parallel beam of incident light is reflected in different directions (diffused reflection). So, the light rays don't meet to form an image of the object.

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APPEARS IN

Solution Explain Why, Though Both a Plane Mirror and a Sheet of Paper Reflect Light but We Can See the Image of Our Face in a Plane Mirror but Not in a Sheet of Paper. Concept: Light Reflection and Refraction Introduction.
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