Question

Which property is a characteristic of single-slit diffraction but not double-slit diffraction?1) the central bright band2) bands are equally spaced3) bands get thinner farther from the band4) red light bands are spaced farther from each other than blue light bands

Answer 1

In the single slit diffraction, the bands get thinner farther from the band but this condition is not applicable in the case of the double slit diffraction.

As, the single slit diffraction has a central maxima and many smaller minima and maxima on the either side of the central maxima whose bands get thinner as distance from the central band is increased but not in the case of double slit diffraction due to the interference phenomenon.

Hence, option 3 (bands get thinner farther from the band) is the correct answer.