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प्रश्न
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).
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उत्तर
| Dark adaptation | Light adaptation |
| Dark adaptation leads to the regeneration of rod and cone cells. | Bleaching Rhodopsin reduces its sensitivity. |
संबंधित प्रश्न
Identify and explain concepts given in this diagram.

Near and far points of a young person normal eye respectively are:
How are we able to see nearby and also the distant objects clearly?
A piece of red glass is heated till its glows in dark. The colour of flowing glass would be:-
In simple microscope ______ lens is used.
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 ______.
Define the following term:
Adaptation
Differentiate between members of the following pair with reference to what is asked in the bracket.
Near and distant accomodation (shape of lens).
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.


