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Which vision defect arises when the eyeb...

Which vision defect arises when the eyeball (i) shrinks and (ii) elongates in size ?

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(i) Hypermetropia. (ii) Myopia.
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ZEN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-ZEN ADDITIONAL QUESTIONS SECTION - VERY SHORT ANSWER TYPE QUESTIONS
  1. In which defect of vision is (i) the far point nearer than infinity ? ...

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  2. A person can see distant objects clearly but nearby objects appear blu...

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  3. Which vision defect arises when the eyeball (i) shrinks and (ii) elong...

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  4. Which eye defect can be corrected using (i) convex lens and (ii) conca...

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  5. Where is the image formed if a person is suffering from (i) myopia and...

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  6. An aged person is having difficulty in seeing nearby objects clearly. ...

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  7. Bifocal lenses are used to correct which defect of vision ?

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  8. Observe the given figure. Name the eye defect indicated in the figure ...

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  9. Shilpa is using spectacles. Is she eligible to pledge to donate her ey...

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  10. What is disporsion of light? Mention the colour that bonds the least a...

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  11. Name the colours that constitute white light in the order of increasin...

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  12. List the colours observed in a spectrum through a prism in the increas...

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  13. Light of two colours A and B passes through a prism. A deviates more t...

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  14. Mention one difference between refraction in a prism and a glass slab.

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  15. A glass prism produces a spectrum when white light passes through it b...

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  16. Why is the path of sunlight visible when it passes through the canopy ...

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  17. Why is it dangerous to drive on a foggy day ?

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  18. Name the colours of spectrum which respectively have (a) maximum wavel...

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  19. Why does disperson occur only on refraction and not on reflection ?

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  20. How does the sky appear from the surface of the moon ?

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