In a double-slit experiment, instead of taking slits of equal widths,

1.	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, (a) the intensities of both the maxima and minima increase (b) the intensity of the maxima increases and the minima has the zero intensity (c) the intensity of the maxima decreases but that of the minima increases (d) the intensity of the maxima decreases and the minima has the zero intensity
Answer» Correct Answer is: (a) the intensities of both the maxima and minima increase In interference between waves of equal amplitudes a, the minimum intensity is zero and the maximum intensity is proportional to 4a² . For waves of unequal amplitudes a and A (A > a), the minimum intensity is nonzero and the maximum intensity is proportional to (a + A)² , which is greater than 4a² .

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, (a) the intensities of both the maxima and minima increase (b) the intensity of the maxima increases and the minima has the zero intensity (c) the intensity of the maxima decreases but that of the minima increases (d) the intensity of the maxima decreases and the minima has the zero intensity

Answer»

Correct Answer is: (a) the intensities of both the maxima and minima increase

In interference between waves of equal amplitudes a, the minimum intensity is zero and the maximum intensity is proportional to 4a² . For waves of unequal amplitudes a and A (A > a), the minimum intensity is nonzero and the maximum intensity is proportional to (a + A)² , which is greater than 4a² .

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