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The Maximum Focal Length of the Eye-lens of a Person is Greater than Its Distance from the Retina. the Eye is - Physics

MCQ

The maximum focal length of the eye-lens of a person is greater than its distance from the retina. The eye is

Options

  • always strained in looking at an object

  • strained for objects at large distances only

  • strained for objects at short distances only

  • unstrained for all distances

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Solution

always strained in looking at an object

The maximum focal length of a normal eye is equal to the distance of the lens from the retina. In case it is greater than the distance, the eye will be strained while focusing the objects on the retina that is at a fixed distance from the eye lens.

Concept: Lenses
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APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 19 Optical Instruments
MCQ | Q 3 | Page 431
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