AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
A ray of light passing through the optical centre of a lens emerges without any deviation (i.e., it continues straight without bending).
Source: Chapter 9, Section 9.3.5
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Examiners look for the key phrase "without any deviation". This is one of the three standard rays used in lens ray diagrams. Simply stating the ray "goes straight" is acceptable but using the textbook phrase scores full marks reliably.