The cornea of the human eye is an example of a
converging lens.
convex mirror.
diverging lens.
converging mirror.
The correct answer and explanation is:
The correct answer is converging lens.
The cornea of the human eye acts as a converging lens because it focuses light onto the retina. The cornea is curved and has a refractive index that bends light rays as they pass through, converging them at a focal point. This process is essential for vision, as the focused light allows the retina to receive a clear image.
The cornea contributes to most of the eye’s focusing power, with the lens inside the eye fine-tuning the focus to accommodate near and far objects. The convergence of light by the cornea occurs because of its curved shape, similar to a converging lens, which has a positive focal length. The curvature of the cornea helps to bend incoming light rays toward a single point on the retina. This is critical for clear and sharp vision.
A convex mirror is not the right answer because a convex mirror diverges light rays, making images appear smaller and farther away. The cornea does the opposite, converging the light.
A diverging lens would spread the light rays apart rather than focusing them. This is the opposite of what the cornea does, so it’s not the right answer either.
Lastly, a converging mirror is also not applicable here. Although mirrors can focus light like lenses, the cornea is a transparent structure that works by refracting (bending) light, not reflecting it. Hence, the cornea’s function aligns more with that of a converging lens.
In summary, the cornea’s refractive properties make it a converging lens, and its primary role is to focus light onto the retina, allowing for clear vision.