mah last question.............
What is meant by the term ‘power of accommodation’ of human eye? How does it help a
person to see nearby as well as distant objects clearly.
Answers
Answered by
11
The ability of eye lens to adjust its focal length to form the sharp image of the object at varying distances on the retina is called its
The eye lens then becomes thicker. As a result, the focal length of eye lens decreases in such a way that the clear sharp image of nearby object is formed on the retina.Thus we see the clear object.
When we see the distant object, these muscles becomes relaxed, thus the eye lens becomes thinner, and consequently focal length of the lens increases. Therefore, the parallel rays coming
from the distant object are focused on the retina and object is seen clearly to us.
Thus, the accommodation power of an eye helps a person to see nearby as well as distant objects clearly.
Answered by
6
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies.
As a result,the focal length of the human eye increases and decreases which enables a person to see nearby as well as distant objects clearly.
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