When a beam of light rays are incident on a wall and also on a plane mirror, in which case is the reflection of light brighter ? Justify.
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Answer:
When incident on a plane mirror.
Explanation:
Wall has rough surface due to which a large amount of beam of light falling on it is absorbed , only some amount of it is reflected.
However this is not so in the case of plane mirror , plane mirror has shiny surface which reflects almost total amount light falling on it .
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