In a double slit experiment, instead of taking slits of equal widths, one slit is made twice as wide as the other. Then, in the interference pattern

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the intensities of both the maxima and the minima increases

the intensity of the maxima increases and the minima has zero intensity.

the intensity of the maxima decreases and that of the minima increases

the intensity of the maxima decreases and the minima has zero intensity.

answer is A.

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Detailed Solution

Imin∝(a1−a2)2Imin′∝(2a−a)2Clearly, the intensity of minima increases.Again Imax∝(a1+a2)2Imax′∝(2a+a)2Clearly, the intensity of maxima increases.

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