The magnification produced by a plane mirror is `m = +1`. What does this mean ?

Explanation

To understand what the magnification of +1 produced by a plane mirror means, we can break it down into a few key points:

### Step 1: Understanding Magnification
Magnification (m) is defined as the ratio of the height of the image (h') to the height of the object (h). Mathematically, it can be expressed as:
\[ m = \frac{h'}{h} \]

### Step 2: Analyzing the Given Magnification
In this case, we are given that:
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