Q.

If the magnification of an image formed by a mirror is positive, then which mirror is it?


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a

Convex mirror

b

Concave mirror

c

Both 1 and 2

d

None of these  

answer is C.

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Detailed Solution

If the magnification of an image formed by a mirror is positive, it is for both convex mirror and concave mirror.
Magnification is positive, which means the image is virtual. Still, we cannot say what exactly the mirror type is because a convex mirror always creates positive magnification, but a concave mirror can produce both negative and positive magnification.
 
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