When focal length is greater: when there is excessive curvature of lens or when there is less curvature of lens?
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The focal length is greater in the case when there is less curvature of eye lens .
Respectively , when there is excess curvature of eye lens then focal length will decrease .
Excessive curvature means :- The bending of sphere ( eye lens ) is more , so it's thickness will increase resulting in decrement in focal length ans vice versa .
thanks :)
The focal length is greater in the case when there is less curvature of eye lens .
Respectively , when there is excess curvature of eye lens then focal length will decrease .
Excessive curvature means :- The bending of sphere ( eye lens ) is more , so it's thickness will increase resulting in decrement in focal length ans vice versa .
thanks :)
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