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Why are 'haloes' (rings) observed someti...

Why are 'haloes' (rings) observed sometimes round the sun or moon?

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MODERN PUBLICATION-DISPERSION-EXERCISE
  1. Why are 'haloes' (rings) observed sometimes round the sun or moon?

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  2. For a prism prove that A + delta = i+e

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  3. How does the angle of deviation vary with the angle of incidence in c...

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  4. Derive the relation for refractive index of the material of prism when...

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  5. Draw a ray diagram to show the refraction of light through a glass pri...

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  6. Plot a graph to show the variation of the angle of deviation as a func...

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  7. Derive the relation, mu=frac(sin(A+deltam)//2)(sin A//2)when refractio...

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  8. Show that delta = (mu-1)A,( when symbols have their usual meanings.) f...

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  9. Discuss the phenomenon of refraction throug a prism.Prove the formula:...

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  10. Derive an expression for the anle of deviation of a small prism in ter...

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  11. What is dispersion of light? Explain it with a diagram. Also explain t...

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  12. Write expression for the angular dispersion produced by a prism.

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  13. Define dispersive power of a prism.

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  14. Define dispersive power of a prism.

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  15. What is dispersion of light? Explain it with a diagram. Also explain t...

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  16. Write expression for the angular dispersion produced by a prism.

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  17. Define the term dispersion by a prism and give the reason for its occu...

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  18. Write expression for the angular dispersion produced by a prism.

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  19. What is meant by the terms dispersion?

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  20. Define dispersive power of a prism.

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  21. A combination of two prisms,one of flint and other of crown glass prod...

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