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Define dispersive power of a prism....

Define dispersive power of a prism.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Dispersion and Prism-EXERCISE
  1. What is the essential condition for observing rainbow ?

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  2. State rayleigh's law of scattering.

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  3. Define dispersive power of a prism.

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  4. Which colour deviates most on passing through prism?

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  5. Which colour deviates least on passing through prism ?

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  6. Why does the colour of the sky appear blue?

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  7. Why the rising sun looks to be red, explain ?

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  8. Why does the sun looks red at the time of setting ? Explain on the bas...

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  9. Why does the colour of the sky appear blue?

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  10. State the reason for the following observations recorded from the surf...

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  11. State the reason for the following observations recorded from the surf...

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  12. Why does the sun appear reddish in the morning (as well as in evening)...

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  13. Why does the colour of the sky appear blue?

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  14. Why does the sun looks red at the time of setting ? Explain on the bas...

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  15. What is dispersion of light ? Explain it with a ray diagram. Also expl...

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  16. Why is there no dispersion of light refracted through a rectangular gl...

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  17. Explain why danger signals are made of red colour ?

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  18. Can we observe dispersion of light in a rectangular glassslab? Explain...

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  19. Why does the colour of the sky appear blue?

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  20. Explain refraction of light through a prism and derive relations: mu= ...

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