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प्रश्न
What changes take place in the shape of eye-lens:
when the eye is focused on a near object?
उत्तर
When the eye is focussed on a nearby object, the eye lens bulges and becomes thicker. This is because, when the eye is focussed on a nearby object, the ciliary muscles of the eyes contract, loosening the suspensory ligaments attached to the the eye. As these ligaments become loose, they stop pulling the eye lens, because of which the eye lens bulges (or becomes more convex) so as to increase its converging power.
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संबंधित प्रश्न
Define the term.
Power of accommodation of the eye.
Name two types of cells in the retina of an eye which respond to light.
What is the least distance of distinct vision for a normal human eye?
Given below is certain structure. Write against them its functional acivity.
retina and ……………………….
What is meant by power of accommodation of the eye?
State the Function:
Aqueous humour
Choose the Odd One Out:
From where the following nerves arise.
Optic nerve
What kind of lens is there in our eyes? Where does it form the image of an object?
With reference to human eye answer the question that follow:
Name the part of the eye associated with the regulation of the size of pupil.
