A real, inverted and equal in size image is formed by

Options

A. a concave mirror
B. a convex mirror
C. a plane mirror
D. none of these

Answer

To determine which type of mirror can form a real, inverted, and equal-sized image, we can analyze the characteristics of different types of mirrors: plane mirrors, convex mirrors, and concave mirrors.

### Step-by-Step Solution:

1. **Understanding Image Formation by Different Mirrors**:
- **Plane Mirror**: A plane mirror produces a virtual image that is upright and of the same size as the object. However, it does not produce a real image, so it does not meet the criteria.
- **Convex Mirror**: A convex mirror always produces a virtual and erect image, which is smaller than the object. Therefore, it also does not meet the criteria for a real image.
- **Concave Mirror**: A concave mirror can produce real images depending on the position of the object.

2. **Identifying the Conditions for Concave Mirror**:
- When the object is placed at the **center of curvature** (C) of a concave mirror, the image formed is:
- **Real**: The rays converge after reflection.
- **Inverted**: The image is upside down compared to the object.
- **Equal in Size**: The size of the image is the same as the size of the object.

3. **Conclusion**:
- The only mirror that can form a real, inverted, and equal-sized image is a **concave mirror** when the object is placed at the center of curvature.

### Final Answer:
A concave mirror forms a real, inverted, and equal-sized image when the object is placed at the center of curvature.

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