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.

Explanation

To solve the question step by step, let's break it down into parts:

### Step 1: Understanding the Concave Mirror
A concave mirror is a spherical mirror that is curved inward. It has a focal point (F) where parallel rays of light converge after reflection. The distance from the mirror's surface to the focal point is called the focal length (f).

### Step 2: Given Data
- Focal length (f) = 15 cm
- To obtain an erect image, the object must be placed between the focal point (F) and the mirror's pole (P).
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