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    Wave Optics: Interference and Diffraction

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    1.A circular diffraction pattern is formed on a faraway screen.
    (a) By what factor will the width of the central maximum change if the wavelength is doubled?
    (a) 4
    (b) 2
    (c) 1 (no change)
    (d) 1/2
    (e) 1/4
    (b) By what factor will the area of the central maximum change if the slit width is doubled?
    (a) 4
    (b) 2
    (c) 1 (no change)
    (d) 1/2
    (e) 1/4

    2. Consider a Young's two-slit experiment in which the wavelength of light is 38% smaller than the distance between
    the slits.
    (a) How many complete dark fringes would be seen on a distant screen? (Assume for all these questions that
    the screen is as large as it needs to be.)
    (a) 0
    (b) 1
    (c) 2
    (d) 3
    (e) 4
    (f) 5
    (b) How many total interference maxima would be seen on a distant screen?
    (a) 0
    (b) 1
    (c) 2
    (d) 3
    (e) 4
    (f) 5
    (c) Now suppose that the wavelength of light is 134% larger than the slit separation. How many complete dark
    fringes would be seen on a distant screen?
    (a) 0
    (b) 1
    (c) 2
    (d) 3
    (e) 4
    (f) 5

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    https://brainmass.com/physics/optics/wave-optics-interference-and-diffraction-34632

    Solution Summary

    Two problems with parts about the interference and diffraction are solved.

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