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Question

A magnifying glass consists of a


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Solution

Magnifying glass:

A magnifying glass is an instrument that produces an image with a size greater than the size of the object.

Convex Lens:

  1. A convex lens is a converging lens, meaning that after refraction, the light rays entering the lens will converge at a point.
  2. A virtual and upright picture is generated when an object is put in between focus and the optical center of a convex lens.
  3. In addition, the image's size will be enlarged than the object's size.

Diagram:

A ray diagram is produced by a concave length with a small and large focal length both.

  1. From the above two figures, we can observe that the concave lens with a smaller focal length produces an enlarged image as compared to the concave lens with a large focal length.
  2. A plane mirror creates a virtual and erect picture of an object, but because it is the same size as the object, it can't be used as a magnifying glass.
  3. A virtual and upright image is generated using a concave lens. However, the image is greatly decreased.
  4. As a result, a concave lens cannot be used in this situation.

Thus, a magnifying glass consists of a convex lens with a small focal length.


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