Question

Which of the following statements is correct regarding rods and cones in the human eye?

• A. Cones are sensitive to dim light.
• B. Cones are sensitive to bright light.
• C. Rods are sensitive to bright light.
• D. Rods can sense colour.

Answer 1

The correct option is B

Cones are sensitive to bright light.

Explanation:

1. The retina is the back part of the eye that contains light-sensitive cells.
2. Photoreceptors are the name given to these specialized cells.
3. The retina contains two types of photoreceptors: rods and cones.
4. The rods are the most sensitive to changes in light intensity. They only have one kind of light-sensitive pigment. Color vision is not enhanced by rods. In a dark room, however, we primarily use our rods because we are colorblind. In the periphery of the retina, rods outnumber cones.
5. The human retina contains approximately 120 million rods.
6. Cones are less light sensitive. Cones, on the other hand, are more sensitive to one of three different colors (green, red, or blue).

Hence, Option(B) is correct.