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When objects at different distances are ...

When objects at different distances are seen by the eye which of the following remains constant ?

A

The focal length of the eye lens

B

The object distance from the eye lens

C

The radii of curvature of the eye lens

D

The image distance from the eye lens

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The correct Answer is:
D
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AAKASH SERIES-RAY OPTICS -EXERCISE I
  1. The muscles of a normal eye are least strained when the eye is focusse...

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  2. A normal eye is not able to see objects closer than 25cm because

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  3. When objects at different distances are seen by the eye which of the f...

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  4. The distance of the eye lens from the retina is x. For a normal eye, t...

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  5. An object is placed at a distance u from a simple microscope of focal ...

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  6. A man is looking at a small object placed at his near point. Without a...

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  7. The maximum focal length of the eye lens of a person is greater than i...

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  8. The magnifying power of a telescope can be increased by

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  9. A photograph the magnifying power of telescope (f0= focal length of th...

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  10. To increase the magnifying power of telescope (f0= focal length of the...

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  11. IF the telescope is reversed i.e., seen from the objective side

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  12. In Gallilean telescope, the final image formed is

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  13. An astronomical telescope has a large aperture to

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  14. Which of the following do (does) not depend on whether like rays are p...

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  15. The image of an extended object placed perpendicular to the principal ...

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  16. Condition for no deviation when light travels from one medium to anoth...

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  17. A converging lens is used to form an image on a screen. When the upper...

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  18. A convex lens forms a real image of a point object placed on its princ...

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  19. Consider three converging lens L1 L2 and L3 having identical geometric...

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  20. By properly combining two prisms made of different materials, it is po...

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