First slide
Spherical/Curved mirrors
Question

An object is gradually moving away from the focal point of a concave mirror along the axis of the mirror. The graphical representation of the magnitude of linear magnification (m) versus distance of the object from the mirror(x) is correctly given by (Graphs are drawn schematically and are not to scale)

Moderate
Solution

As object moves from focus its magnification decreases from   to 0 and X coordinate goes from f to 

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