ABO NOCE Practice Test

Which type of lens is responsible for converging light?

1. Plus

2. Minus

3. Neutral

4. Flipped

The correct answer is: Plus

The type of lens responsible for converging light is a plus lens. A plus lens, also known as a convex lens, is thicker at the center than at the edges. When parallel rays of light pass through a plus lens, they are refracted toward the center and converge at a point known as the focal point. This property makes plus lenses useful for various optical applications, such as correcting hyperopia (farsightedness) and magnifying images. In contrast, minus lenses are concave, meaning they are thinner at the center and thicker at the edges, leading to the divergence of light rays. Neutral lenses do not affect the path of light at all, and thus do not converge or diverge light. The term "flipped" does not correspond to a widely recognized type of lens in optics, so it does not apply in this context. Understanding these fundamental properties helps in choosing the appropriate lenses for specific visual needs.