light-reflection and refraction — Science STD 10 — Question
Gujarat BoardEnglish MediumSTD 10Sciencelight-reflection and refraction2 Marks
Question
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
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Answer
This is because a convex mirror (always) forms an erect, virtual and diminished image of an object, wherever the object may be located.
Also, a convex mirror has a wider field of view, relative to a plane mirror, as it is curved outwards.
Thus, a convex mirror fitted on the side of a vehicle enables the driver to view much larger area than that would be possible with a plane mirror, enabling the driver to see traffic behind him/ her to facilitate safe driving.
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