Home Physics Ray Optics Human Eye and Lens Camera An imaginary line joining the optical centre…
Physics Ray Optics Human Eye and Lens Camera Single Correct MCQ
Published on: September 12, 2026

An imaginary line joining the optical centre of the eye lens and the yellow point is called as

A
Principal axis
B
Vision axis
C
Neutral axis
D
Optical axis

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Text Solution

Verified by Experts
The correct answer is:
D
Step 1: Define the optical center of the eye lens.
The optical center of the lens is the point where light rays pass through without bending.
Step 2: Identify the definition of the optical axis.
The optical axis is an imaginary line that passes through the optical center and extends outwards.
Step 3: Apply the definition to the context of the question.
The line joining the optical center of the eye lens and the yellow point describes the path of light and is therefore known as the optical axis.
Therefore, the correct answer is D.

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