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प्रश्न
Name the following:
Two types of adaptations.
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उत्तर
Light and Dark Adaptations.
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संबंधित प्रश्न
The least distance of distinct vision for a young adult with normal vision is about ______.
What happens to the image distance in the eye when we increase the distance of an object from the eye?
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 ____________.
A piece of red glass is heated till its glows in dark. The colour of flowing glass would be:-
In the blind spot of the human eye ______.
Give the reason for the following:
A person from bright sunlight outside enters a poorly lit room and feels blinded for a short while.
The vitamin required for the synthesis of rhodopsin is ______.
Define the following term:
Adaptation
The figures (A) and (B) given below are showing some kind of adjustment. Study the figures and answer the questions that follow.
| A | ![]() |
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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.


