The centre of curvature of a _____ mirror is in front of it.

Options

A. convex
B. concave
C. convex or concave
D. none of these

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Types of Mirrors:**
- Mirrors can be classified into two main types based on their curvature: concave mirrors and convex mirrors.
- A concave mirror has a reflective surface that curves inward, resembling a portion of a sphere's interior.
- A convex mirror has a reflective surface that curves outward, resembling a portion of a sphere's exterior.

2. **Defining Center of Curvature:**
- The center of curvature (C) of a mirror is the center of the sphere from which the mirror segment is taken.
- For a concave mirror, the center of curvature is located in front of the mirror (on the same side as the object).
- For a convex mirror, the center of curvature is located behind the mirror (on the opposite side of the object).

3. **Identifying the Correct Mirror:**
- Since the question asks for the type of mirror where the center of curvature is in front of it, we need to identify which mirror has this property.
- As established, the concave mirror has its center of curvature in front of it, while the convex mirror has its center of curvature behind it.

4. **Conclusion:**
- Therefore, the answer to the question is that the center of curvature of a **concave mirror** is in front of it.

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