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प्रश्न
Night birds have ______ cones than rods in their eyes.
उत्तर
Night birds have less cones than rods in their eyes.
Explanation:
Night birds can see in the night, but not in the day. They have many rod cells and only a few cones on their retina. The owl has a large cornea and pupil, allowing more light into its eye. It also has a large number of rods and only a few cones on its retina. The day birds, on the other hand, have more cones and fewer rods.
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संबंधित प्रश्न
Explain why the image distance in the eye does not change when we change the distance of an object from the eye?
What is the range of vision of a normal human eye?
Name the part of our eyes which helps us to focus near and distant objects in quick succession.
Fill in the following blank with suitable word:
Most of the refraction of light rays entering the eye occurs at the outer surface of the.............
Describe the working of the human eye with the help of the above diagram.
Having two eyes gives a person:
(a) deeper field of view
(b) coloured field of view
(c) rear field of view
(d) wider field of view
Give the main function of the following:
Fovea centralis
Differentiate between:
Yellow spot and Blind spot.
______ is tough and thick white sheath that protects the inner parts of the eye.
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