Write about power of accommodation of human eye. Explain why the image distance in the eye does not change when we change the distance of an object from the eye?
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The ability of eye lens to adjust its focal length is called Power of
accomodation
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Ability of the eye lens to focus nearby as well as distant objects on the retina by changing the curvature or focal length of the eye lens is known as power of accommodation.
Image distance in the eye is the distance between the eye lens and the retina and it is fixed. As the object approaches from infinity towards the eye, the focal length of the eye lens decreases (or vice-versa) so as to maintain the same image distance.
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