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When we view objects lying at differnt d...

When we view objects lying at differnt distances from the eye,which fo the followingt remain constatn?

A

The focal length of the eye-lens

B

The radii of curvature of teh eye-lens

C

The object distance from the eye-lens

D

The image distance from the eye-lens.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. The distances of the human eye-lens from the retina is x.For a normal ...

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  2. Why is a normal eye not able to see clearly the objects placed closer ...

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  3. When we view objects lying at differnt distances from the eye,which fo...

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  4. Draw a ray diagram to show the image formation by a simple microscope....

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  5. If the least distance of distinct vision is 25 cm,then a convex lens o...

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  6. The convex lenses of focal lengths 0.3 m and 0.05 m are used to make a...

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  7. An observer looks at a tree of height 15 m with a telescope of magnify...

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  8. Magnifying power of a telescope is m.If the focal length of the eye-pi...

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  9. A fly is sitting on the objective of a telescope pointed to the moon.W...

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  10. A telescpe is focussed on the moon.If a tiny drop of ink falls on its ...

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  11. For observing a cricket match,binocular is prefferred to tererestrial ...

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  12. A reflecting telescope utilizes

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  13. The resolving power of a telescope depends upon

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  14. Large aperture telescopes are used for

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  15. Light has the following wave property:

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  16. Which of the following produces a plane wavefront?

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  17. As a plane wavefront propagates, its radius of curvature

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  18. A plane wavefront is propagating in a medium.Which of the following is...

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  19. Which of the following is a correct statement ?The ray of light

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  20. Though quantum theory of light can explain a number of phenomena obser...

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