A short straight object of height 100 cm lies before the central axis of a spherical mirror whose focal length has absolute value f = 40cm . The image of object produced by the mirror is of height 25 cm and has the same orientation of the object. One may conclude from the information:

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Image is virtual, opposite side of convex mirror

Image is virtual, opposite side of concave mirror

Image is real, same side of convex mirror

Image is real, same side of concave mirror

answer is A.

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Detailed Solution

Magnification (m) is given by
$m = \frac{height of the image}{height of the object} = \frac{25 cm}{100 cm} = \frac{1}{4}$
Image is diminished and magnification is positive
$∴$ It is possible if object is placed in front of convex mirror.

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