A diminished virtual image can be formed only in

• A. Plane mirror
• B. A concave mirror
• C. A convex mirror
• D. Concave parabolic mirror

To determine where a diminished virtual image can be formed, let's look at the options provided.

Understanding Image Formation

In optics, the type of mirror used affects the nature of the image produced. A virtual image is one that cannot be projected onto a screen and is typically formed when light rays appear to diverge from a point.

Options Analysis

• Plane Mirror: Produces a virtual image that is the same size as the object.
• Concave Mirror: Can produce both real and virtual images, but a virtual image is usually larger than the object when formed.
• Convex Mirror: Always forms a virtual image that is smaller than the object.
• Concave Parabolic Mirror: Primarily used for focusing light, it can also produce virtual images, but they are typically not diminished.

Final Thoughts

The correct answer is C. A convex mirror, as it consistently produces a diminished virtual image regardless of the object's position.