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प्रश्न
Explain why, when it is getting dark at night, it is impossible to make out the colour of cars on the road.
उत्तर
When it gets dark at night, the level of light is too low for the cone cells, which are responsible for colour perception, to function efficiently. This makes it difficult to see the colours of cars on the road.
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संबंधित प्रश्न
Name two parts of the eye which refract light rays (or bend light rays).
Name the part of the retina which is insensitive to light.
Give the scientific names of the following parts of the eye:
changes shape to focus a picture on the retina.
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
The human eye possesses the power of accommodation. This is the power to:
(a) alter the diameter of the pupil as the intensity of light changes
(b) distinguish between lights of different colours
(c) focus on objects at different distances
(d) decide which of the two objects is closer.
Name the respective organs in which the following are located and mention the main function of each:
(i) Iris
(ii) Semicircular canals
Choose the Odd One Out:
Write the name.
The fleshy screen behind cornea.
In human eye the part which allows light to enter into the eye is ______.
With reference to human eye, answer the following question.
What is aqueous humor?
