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State the importance of coherent sources in the phenomenon of interference. In Young's double slit expet-ment to produce interference pattern obtain the conditions for constructive and destructive interference. Hence deduce the expression for the fringe width. How does the firinge width get affected, if the entire experimental apparatus of Young's is immersed in water ?

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RESONANCE ENGLISH-WAVE OPTICS-Exercise-3 (Part-3)
  1. (a) What is plane polarised light? Two polaroid sare placed at 90^(@)...

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  2. What is meant by a linearly polarised light? Which type of waves can b...

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  3. How is a wavefront defined? Using Huygen's construction , draw a figu...

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  4. (a) Light, from a sodium lamp, is passed through two polaroid sheets P...

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  5. In a Young's double slit experiment , the slits are Kept 2mm apart and...

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  6. In Young's double slit experiment ,momochromatic light of wavelength 6...

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  7. In a singleslit diffraction experiment, when a tiny circular obstacle ...

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  8. The diagram, given below, shows the refracton of a plane wavefront, in...

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  9. How would the angular separation of interference fringes in Young's do...

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  10. Two polaroid A and B are set in crossed positions. A third polaroid C ...

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  11. In Young's double slit experiment , the two slits 0.20 mm apart are il...

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  12. State Huygens' principle of diffraction of light.

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  13. State the importance of coherent sources in the phenomenon of interfer...

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  14. Answer the following: (a) What is a wave front? How does it propagat...

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  15. (a) Define a wavefront. Use Huygen' principle to shown diagrammaticall...

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  16. (a) Why are coherent sources necessary to produce a sustained interfer...

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  17. Answer the following: (a) In Young's double slit experiment, derive ...

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  18. Which of the following waves can be polarized (i) Heat waves (ii) Soun...

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  19. Two wavelengths of sodium light 590 nm and 596 nm are used, in turn, ...

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  20. The ratio of the intensities at minima to maxima in Young's double sli...

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