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प्रश्न
Differentiate between members of the following pair with reference to what is asked in the bracket.
Near and distant accomodation (shape of lens).
उत्तर
Near accomodation | Distant accomodation |
Near vision lenses tend to be more convex or rounded. | For distant objects, the lens is flattened and narrower. |
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?
Write the name.
The sensation on the retina persists for a while is
Write an Explanation.
Persistence of vision
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 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 student sitting on the last bench can read the letters written on the blackboard but is not able to read/the letters written in his textbook. Which of the following statements is correct?
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
When light rays enter the eye, most of the refraction occurs at the
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.
Name the following:
Two types of adaptations.
Define the following term:
Adaptation