Why are convex lenses used in magnifying glasses?

Why are convex lenses used in magnifying glasses?

• A. They diverge light to create a larger image
• B. They converge light to enlarge the focal point
• C. They allow light to pass through without bending
• D. They reflect light to make images clearer

Answer: (B)

Convex lenses are utilized in magnifying glasses primarily because they converge light rays to produce a larger image of an object. When light rays pass through a convex lens, they are bent inward and brought together at a point known as the focal point, which is located on the opposite side of the lens from where the light enters. When an object is placed closer to the lens than its focal point, the lens creates a virtual image that appears larger to the observer. This is a result of the refraction of light rays as they pass through the lens, allowing the observer to see a magnified version of the item being examined. This principle of converging light to create magnification is fundamental to the effective function of magnifying glasses. Other options do not accurately describe the behavior of convex lenses. They do not diverge light; rather, they focus it. Convex lenses inherently bend light as they allow it to pass through, and they do not reflect light but refract it instead. Thus, the function of convex lenses in magnifying glasses is dominated by their ability to converge light, leading to the enlargement of images observed through them.

Convex lenses are utilized in magnifying glasses primarily because they converge light rays to produce a larger image of an object. When light rays pass through a convex lens, they are bent inward and brought together at a point known as the focal point, which is located on the opposite side of the lens from where the light enters.

When an object is placed closer to the lens than its focal point, the lens creates a virtual image that appears larger to the observer. This is a result of the refraction of light rays as they pass through the lens, allowing the observer to see a magnified version of the item being examined. This principle of converging light to create magnification is fundamental to the effective function of magnifying glasses.

Other options do not accurately describe the behavior of convex lenses. They do not diverge light; rather, they focus it. Convex lenses inherently bend light as they allow it to pass through, and they do not reflect light but refract it instead. Thus, the function of convex lenses in magnifying glasses is dominated by their ability to converge light, leading to the enlargement of images observed through them.