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Question
Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.
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Solution
(i) Rear view mirrors: Convex mirrors
Reason: (a) Image is formed virtual and erect always.
(b) Image formed is always diminished in size, so it covers large view area.
(ii) Shaving mirrors: Concave mirrors
Reason: (a) Image formed is larger in size so as to see clearly details of the object.
(b) Image formed is virtual and erect when object is placed close to the mirror.
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