State the mirror equation and magnification equation. Can we apply them in case of plane mirrors ?

Explanation

### Step-by-Step Solution:

1. **State the Mirror Equation:**
The mirror equation relates the object distance (u), image distance (v), and focal length (f) of a mirror. It is given by:
\[ \frac{1}{v} + \frac{1}{u} = \frac{1}{f} \]

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