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Wave Optics Test - 32
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Wave Optics Test - 32
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  • Question 1/10
    4 / -1
    In Young\'s double slit experiment, the fringe width is 1 × 10–4 m. If the distance between the slit and screen is doubled and the distance between the two slit is reduced to half and wavelength is change from 6.4 × 10–7m to 4.0 × 10–7m, the value of new fringe width will be
    Solutions

  • Question 2/10
    4 / -1
    In Young\'s experiment, one slite is covered with a blue filter and the other (slit) with a yellow filter. Then the interference pattern
    Solutions

  • Question 3/10
    4 / -1
    Two sources give interference pattern which is observed on a screen, D distance apart from the sources. Then fringe width is 2w. If the distance D is now doubled, the fringe width will
    Solutions

  • Question 4/10
    4 / -1
    In double slit experiment, the angular width of the fringes is 0.20° for the sodium light (λ = 5890Å). In order to increase the angular width of the fringes by 10%, the necessary change in the wavelength is
    Solutions

  • Question 5/10
    4 / -1
    In a biprism experiment, by using light of wavelength 5000 Å, 5 mm wide fringes are obtained on a screen 1.0 m away from the coherent sources. The separation between the two coherent sources is
    Solutions

  • Question 6/10
    4 / -1
    The slits in a Young\'s double slit experiment have equal widths and the source is placed symmetrically relative to the slits. The intensity at the central fringes is I0. If one of the slits is closed, the intensity at this point will be
    Solutions

  • Question 7/10
    4 / -1
    In a Young\'s double slit experiment, the fringe width will remain same, if (D = distance between screen and plane of slits. d = separation between two slits and λ = wavelength of light used)
    Solutions

  • Question 8/10
    4 / -1
    In a Young\'s double slit experiment the intensity at a point where the path difference λ/6 (λ being the wavelength of the light used) is I. If I0 denotes the maximum intensity, I/ I0 is equal to
    Solutions

  • Question 9/10
    4 / -1
    In Young\'s double slit experiment, angular width of fringes is 0.20° for sodium light of wavelength 5890 Å. If complete system is dipped in water, then angular width of fringes becomes
    Solutions

  • Question 10/10
    4 / -1
    In Young\'s double slit experiment, the distance between the slits is 1 mm and that between slit and screen is 1 meter and 10th fringe is 5 mm away from the central bright fringe, then wavelength of light used will be
    Solutions

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