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Mention any three uses of optical fibres...

Mention any three uses of optical fibres.

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AAKASH SERIES-RAY OPTICS-EXERCISE (VERY SHORT ANSWER QUESTIONS )
  1. If theta c in the critical angle, write the deviation value when the r...

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  2. Consider a ray of light passing from one medium to another. If the ang...

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  3. Mention any three uses of optical fibres.

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  4. It is possible for a lens to act as convergent in one medium and diver...

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  5. Can a single lens ever form a real and erect image?

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  6. If the two radii of a thin lens are not equal, will the focal length c...

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  7. What is the focal length if plane surface is silvered in previous illu...

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  8. What will be the equivalent focal length of a system consisting of a t...

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  9. An air bubble is formed inside water. Does it act as a converging lens...

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  10. As an object is moved from the surface of a thin converging lens to a ...

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  11. Define refracting angle and principal section of a prism

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  12. The graph between angle of deviation (delta) and angle of incidence (i...

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  13. Name the shape of wavefront after refraction of (1) Plane wavefront th...

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  14. What is angular dispersion? On what factors does it depend?

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  15. Can we have dispersion without deviation with a pair of prisms of the ...

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  16. Can a beam of white light when passed through a hollow prism give spec...

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  17. If three identical prisms are combined is it possible to pass a beam t...

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  18. Distinguish between a pure spectrum and an impure spectrum.

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  19. What is a line spectrum? What does its study give?

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  20. What is a band spectrum? What does its study give?

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