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What is total internal reflection of lig...

What is total internal reflection of light ? What are conditions for total internal reflection ?

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MODERN PUBLICATION-RAY OPTICS AND OPTICAL INSTRUMENTS-Revision Exercises (Very Short Answer Questions)
  1. Define one dioptre.

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  2. Find the focal length of a lens having -0.5 D power.

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  3. What is total internal reflection of light ? What are conditions for t...

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  4. What are optical fibres ? What is the principle on which optical fibre...

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  5. What is the main requirement in fabricating optical fibres ?

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  6. What are para-axial rays and marginal rays ?

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  7. Under what condition will the object and image always be on the same s...

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  8. An image of an object is formed by using a convex lens. If the orienta...

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  9. What is focal length and power of a rectangular glass slab ?

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  10. Two convex lenses of focal length 10 cm each are combined. What will b...

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  11. Speed of light in glass is 2 xx 10^8 m//s. Refractive index of glass i...

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  12. What do you mean by angle of prism ?

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  13. List the factors on which the angle of deviation through a prism depen...

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  14. Which colour deviates (i) most (ii) least on passing through a prism ?

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  15. The sparkle of a diamond can be explained by which phenomenon of light...

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  16. What do you mean by pure spectrum ?

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  17. In the spectrum of white light through the prism, which colour is seen...

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  18. An equilateral prism is made of made of material of refractive index s...

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  19. Write the relation between angle of prism, angle of incidence and angl...

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  20. What is dispersion of light ?

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