Lenses refract light, converging (convex) or diverging (concave) based on shape. They produce real or virtual images, affecting magnification and focus. Commonly used in cameras, eyeglasses, and microscopes.
Name the part of a lens through which a ray of light passes without suffering any deviation.
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The part of a lens through which a ray of light passes without suffering any deviation is called the optical center of the lens. The optical center is a point near the center of the lens where the lens is thinnest, and light passing through this point undergoes minimal or no refraction. Rays passing through the optical center continue along their original path without any deviation.