Question
We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.
Solution
The object should be placed between the focus F and the pole P of the concave mirror, i.e., between 0 and 15 cm from the mirror to obtain an erect and virtual image of the object. The size of the image obtained will be larger than the object.
The figure above shows us the image formed by a concave mirror with the object between F and P.
The figure above shows us the image formed by a concave mirror with the object between F and P.
