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प्रश्न
When light rays enter the eye, most of the refraction occurs at the
पर्याय
crystalline lens
outer surface of the cornea
iris
pupil
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उत्तर
outer surface of the cornea
Explanation -
When the light rays enter the eye through a thin membrane, it enters through the transparent bulge on the front surface of the eyeball, called the cornea. Most of the refraction for the light rays entering the eye occurs at this outer surface of the cornea.
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संबंधित प्रश्न
The least distance of distinct vision for a young adult with normal vision is about ______.
The change in focal length of an eye lens is caused by the action of the ______.
Write the name.
The sensation on the retina persists for a while is
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?
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
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 focal length of the eye lens increases when eye muscles ____________.
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
How are we able to see nearby and also the distant objects clearly?
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 ______.
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.
Dark and light adaptation (pigments which will be regenerated).
