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NDA 2022 GAT · General Knowledge · Light and Optics · medium

The cells of the retina responsible for vision in dim light are the

Single correct option

The cells of the retina responsible for vision in dim light are the
  1. A. cones
  2. B. optic nerve fibres
  3. C. ciliary cells
  4. D. rods
Show answer and solution

Answer: (D) rods

Rod cells contain rhodopsin and respond to very low light, but do not distinguish colours. Cone cells work in bright light and give colour vision. This is why we lose the sense of colour in a dark room.
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Original question written in the NDA 2022 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake