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Explain clearly why, a person who has lo...

Explain clearly why, a person who has lost the sight of one eye is at a disadvantage compared with the normal person who has two good eyes.

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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
  1. Fill in the following blanks with suitable words : (a) Having two ey...

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  2. What are the advantages of having two eyes instead of just one ?

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  3. Explain clearly why, a person who has lost the sight of one eye is at ...

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  4. Name two animals having eye : (a) on the sides of the head. (b) at...

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  5. With both eyes open, a person's field of view is about :

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  6. Having two eyes gives a person :

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  7. As light rays pass from air into a glass prism, are they refracted tow...

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  8. As light rays emerge from a glass prism into air, are they refracted t...

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  9. Name a natural phenomenon which is caused by the dispersion of sunligh...

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  10. What information do we get about sunlight from the formation of a rain...

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  11. What did Newton demonstrate by his experiments with the perism ?

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  12. What colours make up white light ?

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  13. Give the meaning of the term VIBGYOR. With which phenomenon is it conn...

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  14. In the formation of spectrum of white light by a prism : (i) which c...

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  15. What colours lie on the two sides of the 'green colour' in the spectru...

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  16. Name the scientist who discovered that sunlight consists of seven colo...

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  17. What is the order of colours in a rainbow, from the outside to the ins...

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  18. Which light has the longer wavelength : red light or blue light ?

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  19. Which colour of light has the shorter wavelength-red or violet ?

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  20. Fill in the blanks with suitable words : (a) When a ray of light ent...

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