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प्रश्न
Name the part of the retina which is insensitive to light.
उत्तर
The blind spot is the part of the retina which is insensitive to light.
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संबंधित प्रश्न
Explain, why a normal eye is not able to see distinctly the objects placed closer than 25 cm, without putting any strain on the eye.
Where does the greatest degree of refraction of light occur in the eye?
Why does it take some time to see objects in a dim room when you enter the room from bright sunshine outside?
How does the eye adjust itself to deal with light of varying intensity?
The animals of prey have:
(a) two eyes at the front
(b) two eyes at the back
(c) two eyes on the sides
(d) one eye at the front and one on the side
With reference to the functioning of the eye, answer the question that follow:
Name the cells of the retina and its respective pigments which get activated in the light.
Give the main function of the following:
Lachrymal glands
Shylesh is a school-going kid studying standard VIII. He is crazy about playing video games on mobile phones. After a couple of months, his eyes turned red and he felt severe pain in his eyes. His science teacher enquired about this and advised his parents to take him to an eye doctor.
- How does excessive usage of mobile phone affect our eyes?
- What are the values shown by the teacher?
State the functions of the following:
Iris
Write the main functional activity of the following structure.
Choroid
