Effect of unequal slit widths or intensities on the bright and dark fringes

1. A.
   the intensity of the maxima decreases and the minima has zero intensity.
2. B.
   the intensity of maxima decreases and that of the minima increases.
3. C.
   the intensity of the maxima increases and the minima has zero intensity.
4. D.
   the intensities of both the maxima and the minima increase.

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1. A.
   Intensity of fringes remains unaltered
2. B.
   Intensity of bright fringe decreases and that of dark fringe increases
3. C.
   Intensity of bright fringe increases and that of dark fringe decreases
4. D.
   Intensity of both bright and dark fringes decreases

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1. A.
   there is some intensity of light in the region of destructive interference.
2. B.
   fringe width is less.
3. C.
   brightness of fringes is less.
4. D.
   fringes disappear after short time.

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1. A.
   large
2. B.
   small
3. C.
   equal
4. D.
   in the ratio $2 : 1$

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