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Fill in the blanks with suitable words :...

Fill in the blanks with suitable words :
(a) When a ray of light enters a prism, it bends………….the normal , as it leaves the prism, it bends…………the normal.
(b) White light is composed of…………..colours. The colour of white light deviated through the largest angle by a prism is............

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The correct Answer is:
(a) towards ; away from (b) seven ; violet
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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
  1. Which light has the longer wavelength : red light or blue light ?

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

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

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  4. (i) A ray of white light breaks up into its components while passing t...

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  5. When a beam of white light is passed through a prism, it splits to for...

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  6. (a) What is spectrum ? What is the name of glass shape used to produce...

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  7. What is meant by dispersion of white light ? Describe the formation of...

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  8. Draw a diagram to show how white light can be dispersed into a spectru...

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  9. Make two diagrams to explain refraction and dispersion.

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  10. Describe how you could demonstrate that white light is composed of a n...

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  11. How could you show that the colours of the spectrum combine to give wh...

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  12. How is refracted most by a prism : red light or violet light ? Explain...

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  13. A beam of white light is shone onto a glass prism. The light cannot be...

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  14. A beam of white light falls on a glass prism. The colour of light whic...

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  15. The colour of white light which suffers the maximum bending (or maximu...

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  16. Which of the following colour of white light is least deviated by the ...

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  17. The colour of white light which is deviated the maximum on passing thr...

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  18. The splitting up of white light into seven colours on passing through ...

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  19. The coloured light having the maximum speed in glass prism is :

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  20. Which of the following colour of white light has the least wavelength ...

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