Karnataka Board PUCPUC Science 2nd PUC Class 12

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

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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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Chapter 19: Optical Instruments - MCQ [Page 431]

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

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