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प्रश्न
Define the following term:
Adaptation
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उत्तर
Adaptation is the process by which the human eye adjusts to changes in light intensity.
- Light Adaptation: When a person moves from a dark environment to a brightly lit area (e.g., stepping out of a cinema hall in the afternoon), they initially experience a dazzling effect. After a few seconds, the eyes adjust to the brightness. This process is called light adaptation.
- Dark Adaptation: When a person enters a dark area from a brightly lit environment (e.g., entering a cinema hall), they initially struggle to see clearly. Gradually, their vision improves as the eyes adapt to the darkness. This process is called dark adaptation.
संबंधित प्रश्न
Why is a normal eye not able to see clearly the objects placed closer than 25 cm?
What happens to the image distance in the eye when we increase the distance of an object from the eye?
The change in focal length of an eye lens is caused by the action of the ______.
The 'eye muscles' are controlled by which cranial nerves?
Near and far points of a young person normal eye respectively are:
The least distance of distinct vision for a normal eye is ____________.
When light rays enter the eye, most of the refraction occurs at the
In the blind spot of the human eye ______.
In simple microscope ______ lens is used.
Name the following:
Two types of adaptations.
