We wish to obtain an erect image of an object

We wish to obtain an erect image of an object using a concave mirror of focal length of 15 cm. What should be 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?

  1. The range of distance of object is between 0 and 15 cm.
  2. The image is virtual and erect.
  3. The image is larger than the object.