Magnification of mirror is +2/3, the type of mirror is :

Options

A. Concave
B. Plane
C. Convex
D. Combination of all

Answer

To determine the type of mirror based on the given magnification of +2/3, we can follow these steps:

### Step-by-Step Solution:

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

2. **Identify the Sign of Magnification**:
The given magnification is +2/3. A positive magnification indicates that the image formed is erect (upright) relative to the object.

3. **Analyze the Magnitude of Magnification**:
The magnitude of the magnification is less than 1 (|m| < 1). This means that the image is smaller than the object.

4. **Determine the Type of Mirror**:
- **Concave Mirror**: Can produce both real and virtual images. Virtual images are erect and can be larger or smaller than the object depending on the position of the object.
- **Convex Mirror**: Always produces virtual images that are erect and diminished (smaller than the object).
- **Plane Mirror**: Produces images that are the same size as the object (magnification = 1).

5. **Conclusion**:
Since the magnification is positive (indicating an erect image) and less than 1 (indicating a diminished image), the only type of mirror that fits this description is a **convex mirror**.

### Final Answer:
The type of mirror is a **convex mirror**.

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