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Q.

Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size, whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli, respectively, are


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a

Plane mirror and concave mirror

b

Concave mirror and convex mirror

c

Plane mirror and convex mirror

d

Convex mirror and plane mirror 

answer is C.

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Detailed Solution

This means that the mirrors of Boojho and Paheli, respectively, are plane mirrors and convex mirrors.
It is known that a plane mirror always forms a virtual image of the same size as the object. On the other hand, the convex mirror is always a diminished virtual image. Since Boojho found his image to be erect and of the same size and Paheli found her image erect and small, we can say that the mirror of Boojho and Paheli is plane and convex mirrors, respectively.
 
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