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In a laboratory, interference fringes ar...

In a laboratory, interference fringes are observed in air medium. The laboratory is now evacuated by removing air. If other conditions remain unaltered, what changes will be observed in fringe pattern?

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Refractive index of air is slightly more then 1. Laboratory being evacuated refractive index of the medium decreases. Hence wavelength increases . As fringe width is directly proportional to the wavelenght of light used fringes of marginally increased width will be observed.
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CHHAYA PUBLICATION-LIGHT WAVE AND INTERFERENCE OF LIGHT -HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS
  1. If all experiments related to young's double slit inter ference is per...

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  2. Two waves whose intensities are in the ratio 9:1 interfere.find the r...

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  3. In a Young's double slit experiment one of the slits is covered (i) wi...

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  4. What is the effect on the interence pattern in Young's double slit exp...

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  5. In Young's double slit experiment if distance between the two slits is...

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  6. In Young's double slit experiment what is the path difference between ...

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  7. What is the significance of optical path?

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  8. Two light beams of intersities I and 4I, respectively form interferenc...

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  9. Ratio of the amplitudes of two waves emitted from a pair of coherent ...

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  10. If ratio pf maximum to minimum intensities of the fringes, produced in...

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  11. Light waves of different intensities from two coherent sources superp...

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  12. In a laboratory, interference fringes are observed in air medium. The ...

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  13. What change will be observed in the interference pattern produced in Y...

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  14. In a double slit experiment using a white light, a white fringe is not...

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  15. Why did Huygens introduce the concept of secondary wavelets?

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  16. What is the distance between the first bright fringe and first dark fr...

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  17. In all interference patterns, the width of a dark fringe is y(1) and t...

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  18. Monochromatic light was used in Young' s double slit experiment , for ...

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  19. In interference pattern by two identical slits the intensity of centra...

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  20. In a double-slit experiment, instead of taking slits of equal width, o...

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