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Draw a ray diagram showing the dispersio...

Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surface. Also indicate the order of the colours of the spectrum obtained.

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The ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces are shown below

The order of the colour is Violet, indigo, Blue, Green, Yellow, Orange and Red starting from the base of the prism to upwards.
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NCERT EXEMPLAR-THE HUMAN EYE AND THE COLOURFUL WORLD -The Human Eye And The Colourful World
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  4. The blue colour of the water of the sea is due to :

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  5. When light rays enter the eye, most of the refraction occurs at the

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  6. The focal length of the eye lens increases when eye muscles

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  7. Draw ray diagrams each showing (i) myopic eye and (ii) hypermetrop...

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  8. A student sitting at the back of the classroom cannot read clearly the...

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  9. How are we able to see nearby and also the distant objects clearly?

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  10. Nooper needs a lens of power - 4.5 D for correction of her vision. (...

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  11. How will you use two indentical prisms so that a narrow beam of white ...

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  12. Draw a ray diagram showing the dispersion through a prism when a narro...

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  13. Is the position of a star as seen by us its true position? Justify you...

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  14. Why do we see a rainbow in the sky only after rainfall?

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  15. Why does clear sky appear blue ?

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  16. What is the difference in colours of the sun observed during sunrise/s...

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  17. Explain the refraction of light through a triangular glass prism using...

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  18. How can we explain the reddish appearance of sun at sunrise or sunset?...

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  19. Explain the phenomenon of dispersion of white light through a glass pr...

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  20. How does refraction take place in the atmosphere? Why do stars twinkl...

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