Write the distinguishing features between a diffraction pattern due to a single slit and the interference fringes produced in Young's double slit experiment.

Explanation

Diffraction due to a Single Slit :
1. It is produced due to different parts of same wave fronts.
2. Central fringe is twice as wide as other fringes.
3. Intensity of fringes decreases as we go to successive maxima away from the centre.
4. At an angle `lambda//a`, first minima is obtained.
Interference Fringe produced in Young.s Double Slit experiment :
1. It is produced due to two different wavefronts.
2. Fringe width is of same size
3. Fringes have same intensity.
4. At an angle `lambda//a` maxima is obtained.