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Write the relationship between the path ...

Write the relationship between the path difference and the wavelength of light used for constructive and destructive interference of light.

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For constructive interference
Path difference = `n lambda`
For destructive interference
Path difference = `(n + 1//2)lambda`.
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MODERN PUBLICATION-WAVE OPTICAL-Revision Exercises (Very Short Answer Questions)
  1. What happens to interference fringes when the distance between the two...

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  2. If one of the slits in Young's experiment is covered, what effect will...

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  3. Write the relationship between the path difference and the wavelength ...

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  4. What is the condition of obtaining bright interference fringes?

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  5. If you move the source slit closer to the double slit in Young's exper...

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  6. Will there be an interference pattern on the screen if the slits in Yo...

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  7. Distinguish between interference and diffraction of light.

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  8. Three lights of red, blue and green colour are used successively in Yo...

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  9. What wil be the effect on the fringes, if Young's double slit experime...

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  10. What will be the ratio of slit widths if the amplitudes of the light w...

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  11. What is the effect on the interference fringes in Young's double slit ...

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  12. What are coherent sources ? Define interfernece of light. Obtain the c...

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  13. What are coherent sources of light ? Why nointerference pattern is ob...

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  14. State the postulates of Huygens' wave theory.

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  15. What is the condition for diffraction to take place ?

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  16. Why diffraction is better experienced in sound waves than in light wav...

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  17. What will be the effect on the width of the central maxima if the slit...

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  18. Why light waves cannot show diffracton around hills and tall buildings...

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  19. How does the angular separation between frings in single-slit diffract...

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  20. State one defect of Huygens's wave theory.

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