Which one among the following figures correctly represents the ray diagram? (Consider the lens to be thin)

Correct option is D

The correct answer is (d) for the ray diagram of the convex (converging) lens. Explanation: In option (d), the ray coming parallel to the principal axis is refracted by the convex lens and passes through the focal point on the opposite side. Additionally, the ray that initially passes through the focal point before the lens emerges parallel to the principal axis after refraction. This is the proper behavior for a convex lens according to the principles of ray tracing, which state that: 1. A ray parallel to the principal axis passes through the focal point after refraction. 2. A ray passing through the focal point emerges parallel to the principal axis after passing through the lens. This behavior of light rays in a convex lens matches the correct rules for ray tracing, confirming that (d) is the accurate representation of the ray diagram for a convex lens Information Booster: (a): This is an incorrect representation, as the rays should not converge like that without first passing through the lens. (b): This figure is incorrect because it shows diverging rays, which is characteristic of a concave lens, not a convex lens. (c): This figure shows parallel rays after refraction, which is incorrect unless the object is placed at infinity.