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Wave Optics Test - 39
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Wave Optics Test - 39
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  • Question 1/10
    4 / -1
    How fast a person should drive his car so that the red signal of light appears green?
    (Wavelength for red colour = 6200 Å and wavelength for green colour = 5400 Å)
    Solutions

  • Question 2/10
    4 / -1
    Two beams of light will not give rise to an interference pattern, if
  • Question 3/10
    4 / -1
    A parallel beam of fast moving electrons is incident normally on a narrow slit. A screen is placed at a large distance from the slit. It the speed of the electrons is increased, which of the following statement is correct
    Solutions

  • Question 4/10
    4 / -1
    Consider Fraunhoffer diffraction pattern obtained with a single slit at normal incidence. At the angular position of first diffraction minimum, the phase difference between the wavelets from the opposite edges of the slit is
    Solutions

  • Question 5/10
    4 / -1
    Angular width (β) of central maximum of a diffraction pattern on a single slit does not depend upon
    Solutions

  • Question 6/10
    4 / -1
    In the experiment of diffraction at a single slit, if the slit width is decreased, the width of the central maximum
  • Question 7/10
    4 / -1
    Conditions of diffraction is
    Solutions

  • Question 8/10
    4 / -1
    The phenomenon of diffraction of light was discovered by
  • Question 9/10
    4 / -1
    In a diffraction pattern by a wire, on increasing diameter of wire, fringe width
    Solutions

  • Question 10/10
    4 / -1
    What will be the angular width of central maxima in Fraunhoffer diffraction when light of wavelength 6000 Å is used and slit width is 12 × 10–5 cm?
    Solutions

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