Advertisements
Advertisements
प्रश्न
Write the name.
The sensation on the retina persists for a while is
Advertisements
उत्तर
The sensation on the retina persists for a while is- Persistence of vision
APPEARS IN
संबंधित प्रश्न
The least distance of distinct vision for a young adult with normal vision is about ______.
Why is a normal eye not able to see clearly the objects placed closer than 25 cm?
What happens to the image distance in the eye when we increase the distance of an object from the eye?
Write the name.
The persons which are unable to distinguish between different colours
Write an Explanation.
Persistence of vision
Identify and explain concepts given in this diagram.
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?
Having two eyes facilitates in
A: Increasing the field of view
B: Bringing three-dimensional view
C: Developing the concept of distance/size
Then the correct option is/are
Near and far points of a young person normal eye respectively are:
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 ____________.
When light rays enter the eye, most of the refraction occurs at the
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 ______.
In simple microscope ______ lens is used.
Adjusting the focal length of the eye lens to view objects at different distances is done by ______.
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 ______.
Name the following:
Two types of adaptations.
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).
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.
