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Wave Optics Test - 56
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Wave Optics Test - 56
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  • Question 1/10
    4 / -1
    If I0 is the intensity of the principle maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled
  • Question 2/10
    4 / -1
    In a Young\'s double slit experiment, the separation between the two slits is d and the wavelength of the light is λ The intensity of light falling on slit 1 is four times the intensity of light falling on slit 2. Choose the correct choice (s)
    Solutions

  • Question 3/10
    4 / -1
    In an interference arrangement similar to Young\'s double slit experiment, the slits S1 and S2 are illuminated with coherent microwave sources each of frequency 106 Hz. The sources are synchronized to have zero phase difference. The slits are separated by distance d= 150 m. The intensity I(θ) is measured as a function of θ, where θ is defined as shown. If I0 is maximum intensity, then I (θ) for 0 ≤ θ ≤ 90° is given by

    Solutions

  • Question 4/10
    4 / -1
    In Young\'s double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance d (d >> b) from the slits. Some wavelengths are missing exactly in front of one slit. These wavelengths are
    Solutions

  • Question 5/10
    4 / -1
    In the Young\'s double slit experiment, the ratio of intensities of bright and dark fringes is 9. This means that
    Solutions

  • Question 6/10
    4 / -1
    In Young\'s double slit experiment with a source of light of wavelength 6320 Å, the first maxima will occur when
    Solutions

  • Question 7/10
    4 / -1
    A thin air film is formed by putting the convex surface of a plane-convex lens over a plane glass plate. With monochromatic light, this film given an interference pattern due to light reflected from the top (convex) surface and the bottom (glass plate) surface of the film.
    Statement 1 When light reflects from the air-glass plate interface, the reflected wave suffers a phase change of it
    Statement 2 The centre of the interference pattern is dark.
  • Question 8/10
    4 / -1
    An initially parallel cylindrical beam travels in a medium of refractive index µ(I) = µ0 + µ2I, where µ0 and µ2 are positive constant and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
    The initial shape of the wavefront of the beam is
    Solutions

  • Question 9/10
    4 / -1
    An initially parallel cylindrical beam travels in a medium of refractive index µ(I) = µ0 + µ2I, where µ0 and µ2 are positive constant and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
    The speed of light in the medium is
    Solutions

  • Question 10/10
    4 / -1
    An initially parallel cylindrical beam travels in a medium of refractive index µ(I) = µ0 + µ2I, where µ0 and µ2 are positive constant and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
    As the beam enters the medium, it will
    Solutions

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