Question

the point at which light rays converge and cross each
convex lens
focal point
optical center
refraction

Explanation:

To solve this, we analyze each option:

• "Convex Lens" is a lens type, not a point.
• "Focal Point" is defined as the point where light rays converge (after passing through a convex lens, for example) and cross.
• "Optical Center" is a point in a lens through which light passes without deviation, not convergence.
• "Refraction" is a phenomenon, not a point.

So the correct option is the one that matches the definition of the point of light convergence.

Answer:

B. Focal Point