The maximum focal length of the eye-lens of a person is greater than its distance from the retina. Is it true that the eye will always will be strained while looking at an object?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
The maximum focal length of a normal eye is always equal to the distance of the lens from the retina. If the distance is greater, the eye will be tense when focusing objects on the retina at a certain distance from the eye lens. The eye is always tensed to see an object since the maximum focal length is greater than its distance from the retina. Thus, the eye must always be tensed to reduce the radius of curvature to reduce the focal length.

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