A virtual image larger than the object can be produced by a

• concave lens when the object is placed between the focal point and the lens.
• concave mirror when the object is placed between the focal point and the mirror.
• convex lens when the object is placed within the focal length.
• convex mirror, but the image will be smaller.

When discussing how different optical devices create images, it's important to understand the specific conditions under which each type of lens or mirror operates. Here’s a breakdown of how virtual images are formed by various optical elements:

Concave Lens

A concave lens produces a virtual image that is upright and smaller than the object when the object is placed between the focal point and the lens. This is because the light rays diverge, making it appear as if they are coming from a larger image behind the lens.

Concave Mirror

In contrast, a concave mirror can create a virtual image that is larger than the object when the object is positioned between the focal point and the mirror. The reflected rays converge, allowing the image to appear larger and upright.

Convex Lens

For a convex lens, a virtual image is formed when the object is placed within the focal length. Similar to the concave lens, the image appears upright and larger than the object due to the way light rays converge.

Convex Mirror

Lastly, a convex mirror always produces a virtual image that is smaller than the object, regardless of the object's position. This is because the light rays diverge, and the image appears behind the mirror, making it smaller and upright.

Understanding these principles helps clarify how different lenses and mirrors manipulate light to create images of various sizes and orientations.