sperical mirror produces an image of magnification -1 on a screen at a distance of 18 cm from the mirror and type of mirror how far is the object located from the mirror what is the minimum distance between the object and the real image in this case
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Given
m=-1;which means v=u;
The image distance is given18 cm. Obviously that is only object distance. Hence object is located at a distance of 18 cm.from the mirror. The mirror is concave.since -ve magnification is possible for that mirror only.
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