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Two straight narrow parallel slis 0.2 mm apart are illuminated byp monochromatic light of wavelength `6000 overset(@)(A)`. Find the width of the fringe due to interference at a distance of 10 cm.

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Knowledge Check

  • Two slits separated by a distance of 1 mm are illuminated with light of wavelength 6000overset@A . The interference fringes were observed on a screen placed 100 cm from the slits. The distance between the third dark fringes and the fifth bright fringes is equal to :

    A
    0.60 mm
    B
    1.50 mm
    C
    3.00 mm
    D
    4.50 mm

  • Two slits separated by a distance of 1 mm are illuminated with red light of wavelength 6.5xx10^(-7) m. The interference fringes are observed on a screen placed 1m from the slits. The distance between the third dark fringe and the fifth bright fringe is equal to

    A
    0.65 mm
    B
    1.63 mm
    C
    3.25 mm
    D
    4.88 mm

  • In a biprism experiment, the wavelength of monochromatic light is 6000overset@A . The distance between the two virtual images is 6 mm. The number of fringes formed per mm on a screen placed at a distance of 1 m is :

    A
    5
    B
    10
    C
    15
    D
    20

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    In Young's double slit experiment, the two slits 0.15 mm apart are illuminated by monochromatic light of wavelength 450 nm. The screen is 1 m away from the slits. (i) Find the distance of the second (a) bright fringe. (b) dark fringe from the central maxima. (ii) How will the fringe pattern change, if the screen is moved away from the slits?

    In Young.s double slit experiment, the two slits 0.15 mm apart are illuminated by monochromatic light of wavelength 450 nm. The screen is 1 m away from the slits. Find the distance of the second bright fringe.

    In Young.s double slit experiment, two slits 0.10 m apart are illuminated by monochromatic light of wavelength 400 nm. The screen is 1.0 m away from slits, find the distance of second (i) bright fringe (ii) dark fringe from central maximum

    In Young's experiment fringe width is 2 mm for light of wavelength 6000 overset(@)(A) . Calculate the fringe width if the entire apparatus is immersed in water of refractive idex 4/3.

    Two slits separated by a distance of 1 mm are illuminated with red light of wavelength 6.5 xx 10^(-7) m. The interference fringes are observed on a screen placed 1m from the slits. The distance between the third dark fringe and the fifth bright fringe is equal to

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