What is meant by power of accommodation of the eye? How is it relatedto the focal length of the eye lens?
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Answered by
4
HEYA!!!!
ACCOMMODATION : The ability to adjust the focal length is known as Accommodation.
☆ As, it depends upon the focal length of the lens.
☆ We know that the ciliary muscles are located near the lens.
☆ To see the far objects or images the ciliary muscles relax , where the lens become thin and the far objects are visible clearly.
☆ To see the near objects obviously they contract, where the lens become thick which have less focal length can help to see image clearly.
Hence, the lens and accommodation are related.
HOPE THIS HELPS U. @MP #MAHABOOBPASHA #☺☺
ACCOMMODATION : The ability to adjust the focal length is known as Accommodation.
☆ As, it depends upon the focal length of the lens.
☆ We know that the ciliary muscles are located near the lens.
☆ To see the far objects or images the ciliary muscles relax , where the lens become thin and the far objects are visible clearly.
☆ To see the near objects obviously they contract, where the lens become thick which have less focal length can help to see image clearly.
Hence, the lens and accommodation are related.
HOPE THIS HELPS U. @MP #MAHABOOBPASHA #☺☺
Answered by
5
Power of Accommodation Of Eye Lens:
The ability of eye lens to adjust the focal length automatically to see the distant or near object clearly.
How Power of Accommodation and Focal length are related :
When rays from distant object falls on eye lens, the ciliary muscles will expand causing the lens to become thin. As thin lens have higher focal length it can view distant object clearly.But its converging power is less which is sufficient
to view distant object.
When rays from near object falls on eye lens, the ciliary muscles will contract which makes eye lens thicker causing focal length to decrease.
The ability of eye lens to adjust the focal length automatically to see the distant or near object clearly.
How Power of Accommodation and Focal length are related :
When rays from distant object falls on eye lens, the ciliary muscles will expand causing the lens to become thin. As thin lens have higher focal length it can view distant object clearly.But its converging power is less which is sufficient
to view distant object.
When rays from near object falls on eye lens, the ciliary muscles will contract which makes eye lens thicker causing focal length to decrease.
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