2.1 The process of necessary adjustment of focal
length of the lens in human eye is called
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The given process is called Power of Accommodation.
1) Power of Accommodation is the necessary adjustment of the focal length of the lens in the Human eye.
2) It is necessary because it allows us to focus on nearby as well as far away objects properly without any obstruction.
3) It is done with the help of Cilliary Muscles in the Eye which changes the focus of the lens whenever it is required
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The ‘process of necessary adjustment’ of focal length of the ‘lens in human eye’ is called Accommodation of the lens.
Explanation:
- Accommodation is done with the help of the ‘ciliary muscle’ and the suspensory ligament. When the object is far away the ‘ciliary muscle’ relaxes, this results in the contraction of the suspensory ligament.
- This results in increase in the length of the lens and the decrease of the ‘curvature of the lens’. Hence the eye is accommodated for distant vision.
- Similarly when the object is very near, the ciliary muscle contracts and the suspensory ligament relaxes, this causes an increase in the curvature of the lens and the eye is fixed for near vision.
Learn more about ciliary muscle
State one role of ciliary muscles in the human eye.
https://brainly.in/question/277371
What is the function of ciliary muscles?
https://brainly.in/question/232905
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