Which of the following are considered basic types of lenses?

The selection of convex, concave, and meniscus as the basic types of lenses is accurate because these terms specifically refer to the shape and function of lenses in optics.

Convex lenses are thicker in the center and thinner at the edges, allowing them to converge light rays to a focal point. They are used in magnifying glasses and cameras. Concave lenses, on the other hand, are thinner in the center and thicker at the edges, which results in light rays diverging when they pass through the lens. Concave lenses are commonly used in glasses for correcting nearsightedness. Meniscus lenses are a combination of convex and concave curves, and they are designed to minimize optical aberrations, commonly used in eyeglasses and other optical instruments.

The other options refer to different characteristics or categories that do not fundamentally describe lens types in the way relevant to optics. For example, round, square, and triangular pertain to shapes but not specifically to lens function. Flat, curved, and spherical describe surface geometry but not lens types. Lastly, converging and diverging do relate to how lenses manipulate light; however, cylindrical refers to a particular shape used in specific applications rather than representing a fundamental type of lens. Thus, selecting the