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Can you answer above question using conc...

Can you answer above question using concepts of refraction through lenses ?

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The focal length of a lens depends on the material by which it has been made and radii of curvatures of lens .We need to change focal length of eye lens to get same image distance for various positions of objects.
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VGS PUBLICATION-BRILLIANT-HUMAN EYE AND COLOURFUL WORLD-QUESTIONS GIVEN IN THE LESSON (1 MARK QUESTIONS)
  1. How can we get same image distance for various positions of objects ?

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  2. Can you answer above question using concepts of refraction through len...

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  3. How does eye lens change its focal length ?

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  4. What is the role of ciliary muscles in the eye ? Write the answer in o...

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  5. How does this change (eye lens changes its focal lengths) take place i...

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  6. Does eye lens form a real image or virtual image ?

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  7. Is there any limit to change of focal length of eye lens ?

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  8. What are the maximum and munimum focal lengths of the eye lens ?

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  9. What happens if eye lens is not able to adjust its focal length ?

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  10. What happens if the focal length of eye lens is beyond the range of 2...

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  11. What can we do to correct myopia ?

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  12. What happens when the eye has a minimum focal length greater than 2.27...

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  13. Have you ever observed details in the prescription ?

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  14. You might have heard people saying "my sight is increased or decreased...

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  15. What do you mean by power of lens ?

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  16. How could the white light of the sun gives us various colours of the r...

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  17. What happens to a light ray when it passes through a transparent mediu...

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  18. What is a prism ?

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  19. What is the shape of the outline drawn for a prism ?

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  20. How do you find angle of deviation ?

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