An object is 40 cm form a spherical mirror, along the central axis. The image produced is inverted. What is the power of the mirror?

Explanation

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

### Step 1: Identify the given values
- Object distance (u) = -40 cm (the negative sign indicates that the object is in front of the mirror)
- Lateral magnification (m) = -0.5 (since the image is inverted and real)

### Step 2: Use the magnification formula
The magnification (m) is given by the formula:
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