The imaginary line that divides a mirror in half is called the

The imaginary line that divides a mirror in half is called the

• A. Focal Point
• B. Optical Axis
• C. Real Image
• D. Cornea

Answer: (B)

The imaginary line that divides a mirror in half is the optical axis. This line runs perpendicularly through the mirror’s surface at the vertex and passes through the center of curvature, serving as the line of symmetry for the optical system. It provides the reference along which light rays are analyzed and where the principal focus lies. The focal point is a point on this axis where parallel rays converge after reflection, the real image is the image formed by converging rays meeting, and the cornea is a part of the eye, not a line in the mirror system.

The imaginary line that divides a mirror in half is the optical axis. This line runs perpendicularly through the mirror’s surface at the vertex and passes through the center of curvature, serving as the line of symmetry for the optical system. It provides the reference along which light rays are analyzed and where the principal focus lies. The focal point is a point on this axis where parallel rays converge after reflection, the real image is the image formed by converging rays meeting, and the cornea is a part of the eye, not a line in the mirror system.