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प्रश्न
Write the name.
The sensation on the retina persists for a while is
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उत्तर
The sensation on the retina persists for a while is- Persistence of vision
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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?
Near and far points of a young person normal eye respectively are:
The focal length of the eye lens increases when eye muscles ____________.
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
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.
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
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.
