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प्रश्न
Give the reason for the following:
A person from bright sunlight outside enters a poorly lit room and feels blinded for a short while.
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उत्तर
- A person from the bright sunlight outside enters a poorly lit room and feels blinded for a short while due to dark adaptation.
- Dark adaptation includes regenerating rhodopsin, a pigment in rod cells that breaks down in strong light.
- The pupils dilate, allowing more light into the eyes.
- Adjustments can be time-consuming and may cause temporary blindness.
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संबंधित प्रश्न
Why is a normal eye not able to see clearly the objects placed closer than 25 cm?
The change in focal length of an eye lens is caused by the action of the ______.
Identify and explain concepts given in this diagram.

The 'eye muscles' are controlled by which cranial nerves?
The ability of the eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called:
The least distance of distinct vision for a normal eye is ____________.
How are we able to see nearby and also the distant objects clearly?
In the blind spot of the human eye ______.
Adjusting the focal length of the eye lens to view objects at different distances is done by ______.
The vitamin required for the synthesis of rhodopsin is ______.
