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anonymous

  • one year ago

Two slits spaced 0.45mm apart are placed 75 cm from a screen. What is the distance between the second and third dark lines of the interference pattern on the screen when the slits are illuminated with coherent light with a wavelength of 500nm?

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  1. anonymous
    • one year ago
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    if anyone ever comes... be back in 10

  2. arindameducationusc
    • one year ago
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    y=(n-1/2) * (Lamda*D/d) position of n order minima (Dark Fringe) where n= 1st, 2nd, 3rd.......nth minima Lambda=wavelength, in this case 500nm D= distance from a screen (75cm) d=spacing between slits(.45nm) put the value n=3and calculate next put n=2 and calculate. then just take the difference of the two, you will get your answer......

  3. arindameducationusc
    • one year ago
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    @SRoyea.. if you have any queries please contact me

  4. anonymous
    • one year ago
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    Fringe spacing=(lambda)(L)\d

  5. anonymous
    • one year ago
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    Is the answer 8.3*10 rest to power -4....????

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