Which ray emerges parallel to the axis after passing through the focal point on the object side of a convex lens?

Which ray emerges parallel to the axis after passing through the focal point on the object side of a convex lens?

• A. A ray that was parallel to the axis becomes directed toward the focal point on the opposite side.
• B. A ray aimed at the focal point on the object side emerges parallel to the axis.
• C. A ray passes through the focal point on the image side emerges parallel to the axis.
• D. A ray that enters through the focal point on the image side emerges parallel to the axis.

Answer: (B)