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What is the main advantage of having two...

What is the main advantage of having two eyes in front of the head ?

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It provides steropsis - a sense of depth which helps to gauge distance of the objects clearly.
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ZEN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-ZEN ADDITIONAL QUESTIONS SECTION - VERY SHORT ANSWER TYPE QUESTIONS
  1. Mention one advantage of having two eyes instead of one.

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  2. How do the eyes of a tiger difer from that of a rabbit ?

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  3. What is the main advantage of having two eyes in front of the head ?

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

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  5. In which defect of vision is (i) the far point nearer than infinity ? ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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