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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
The least distance of distinct vision for a young adult with normal vision is about ______.
The eyes of the nocturnal birds like owls are having a large cornea and a large pupil. How does it help them?
The 'eye muscles' are controlled by which cranial nerves?
The least distance of distinct vision for a normal eye is ____________.
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
In simple microscope ______ lens is used.
The vitamin required for the synthesis of rhodopsin is ______.
Name the following:
Two types of adaptations.
Differentiate between members of the following pair with reference to what is asked in the bracket.
Dark and light adaptation (pigments which will be regenerated).
The figures (A) and (B) given below are showing some kind of adjustment. Study the figures and answer the questions that follow.
| A |  |
 |
B |
- Identify the kinds of adjustments done in the figures (A) and (B).
- Distinguish between the adjustments of figures (A) and (B) on the basis of:
- The size of pupil.
- The pigment which gets regenerated.
- Cells of the retina.
