Increasing the diameter of a minus power lens always increases its:

Increasing the diameter of a minus power lens always increases its:

• A. Thickness
• B. Weight
• C. Optical quality
• D. Cost

Answer: (B)

Increasing the diameter of a minus power lens typically leads to an increase in weight. This is because the material used to create the lens, whether glass or plastic, occupies more volume as the diameter increases. Consequently, a larger lens will generally have more material, resulting in a heavier overall lens compared to a smaller diameter lens made from the same type of material. While thickness, optical quality, and cost might be affected by lens diameter changes, they do not universally correlate in a straightforward manner. For instance, the thickness of a lens can vary based on its design and the degree of myopia it corrects, and optical quality might depend on other factors such as the manufacturing process or lens treatment rather than just size. Cost may also increase with diameter, but it is often more related to the specific material choices and design complexities involved. Therefore, in the context of lens manufacturing, focusing on weight gives a more consistent outcome that is directly related to an increase in diameter.

Increasing the diameter of a minus power lens typically leads to an increase in weight. This is because the material used to create the lens, whether glass or plastic, occupies more volume as the diameter increases. Consequently, a larger lens will generally have more material, resulting in a heavier overall lens compared to a smaller diameter lens made from the same type of material.

While thickness, optical quality, and cost might be affected by lens diameter changes, they do not universally correlate in a straightforward manner. For instance, the thickness of a lens can vary based on its design and the degree of myopia it corrects, and optical quality might depend on other factors such as the manufacturing process or lens treatment rather than just size. Cost may also increase with diameter, but it is often more related to the specific material choices and design complexities involved.

Therefore, in the context of lens manufacturing, focusing on weight gives a more consistent outcome that is directly related to an increase in diameter.