(a) An object is kept in front of concave mirror of focal length 30 cm .the image formed is 4 times
the size of the object. Calculate the possible distances of the object from the mirror.
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The object must be placed between the focal length and the center of curvature length hence the distance where the object is kept must be between 60cm to 30cm ( center of curvature is twice the length of the focal point)
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