Question

Which of the following statements is correct about rods compared to cones?
(i) Rods are most numerous in the fovea.
(ii) Rods contain rhodopsin.
(iii) Rods produce general outlines of objects rather than sharp images.
(iv) Rods produce black and white but not colour images.

• A. (i), and (ii) only
• B. (ii), and (iiii) only
• C. (i), (ii) and (iii) only
• D. (ii), (iii) and (iv) only

Answer 1

Answer: (D)

Rods and cones are light receptors present in retina. Rods are absent in the fovea while cones are numerous in the fovea.