Effect on the fringes when the light is changed to a shorter wavelength (red to violet, orange to blue)

1. A.
   the fringes will become brighter.
2. B.
   consecutive fringe lines will come closer.
3. C.
   the central bright fringe will become a dark fringe.
4. D.
   the intensity of minima will increase.

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1. A.
   Fringe width will increase
2. B.
   Fringe width will decrease
3. C.
   At center, instead of maxima, there would be a minima
4. D.
   The intensity of central maxima will decrease

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