You are looking in a mirror. The field of view (for same aperture) is minimum for :

Options

A. convex mirrror
B. concave mirror
C. plane mirror
D. all have same field view

Answer

To solve the problem of determining which type of mirror provides the minimum field of view, we can follow these steps:

### Step 1: Understand the Types of Mirrors
We have three types of mirrors to consider:
- **Concave Mirror**: Curved inward, can magnify images.
- **Convex Mirror**: Curved outward, reduces the size of images.
- **Plane Mirror**: Flat surface, produces images that are the same size as the object.

### Step 2: Analyze the Field of View
The field of view refers to the extent of the observable world that can be seen at any given moment through the mirror.

- **Plane Mirror**: The field of view is equal to the size of the object being reflected. It provides a direct reflection with no distortion.
- **Concave Mirror**: When an object is placed in front of a concave mirror, the image can appear larger depending on the distance of the object from the mirror. This can limit the field of view because the mirror can only reflect a smaller area of the object.
- **Convex Mirror**: This mirror allows for a wider field of view as it diverges light rays, making it possible to see a larger area behind the mirror.

### Step 3: Compare the Field of View
- **Convex Mirror**: Provides the largest field of view.
- **Plane Mirror**: Provides a field of view that is equal to the size of the object.
- **Concave Mirror**: Provides the smallest field of view because it can magnify images, but at the same time, it restricts the observable area.

### Step 4: Conclusion
From the analysis, we can conclude that the concave mirror has the minimum field of view compared to the convex and plane mirrors.

### Final Answer
The minimum field of view is provided by the **concave mirror**.

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