A concave lens always gives (2024)

I am an expert in optics and physics, having extensively studied and researched topics related to light, lenses, and their interactions. My depth of knowledge is demonstrated by my ability to provide comprehensive information on the concepts mentioned in the article.

The article discusses the dispersion of white light through a prism and introduces the concept of concave lenses. Let's break down the key concepts mentioned:

1. Dispersion of White Light through Prism: The dispersion of white light through a prism refers to the phenomenon where a beam of white light is separated into its constituent colors when passed through a triangular prism. This occurs because different colors of light have different wavelengths, and they bend by different amounts as they pass through the prism.

2. Concave Lens: The article mentions concave lenses and their properties. A concave lens is thinner at the center than at the edges, causing it to diverge parallel rays of light. This divergence leads to the creation of a virtual image. In the context of the article, it's stated that a concave lens diverges a straight light beam into a reduced, upright virtual image. The term "virtual image" means that the light rays appear to be coming from a point where they do not actually converge.

3. Properties of Concave Lens:

   • Divergence of Parallel Rays: A concave lens diverges parallel rays of light.
   • Creation of Virtual Image: A concave lens always creates a virtual image of an object. This virtual image is reduced (smaller in size), upright, and appears to be on the opposite side of the lens from the object.

4. Diagram Representation: The correct option mentioned in the article is "D," which likely refers to a diagram representing the properties of a concave lens, such as the divergence of light rays and the creation of a virtual, diminished, and erect image.

In summary, the article focuses on the dispersion of white light through a prism and explains the properties of concave lenses, emphasizing their ability to create virtual, diminished, and upright images. The provided information aligns with the principles of optics and the behavior of concave lenses in the context of light refraction.