An object `4 cm` in size is placed at a distance of `25.0 cm` from a concave mirror of focal length 15.0 cm. Find the position, nature and height of the image.

Explanation

To solve the problem step by step, we will use the mirror formula and the magnification formula for concave mirrors.

### Step 1: Identify the given values
- Object size (height, H1) = 4 cm
- Object distance (U) = -25 cm (negative because it is in front of the mirror)
- Focal length (F) = -15 cm (negative for concave mirror)

### Step 2: Use the mirror formula
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