Question

Difference between interference and diffraction​

Answer 1

Answer:

INTERFERENCE

1. IT IS DUE TO THE SUPERPOSITION OF TWO WAVES COMING FROM TWO COHERENT SOURCES.
2. THE WIDTH OF THE INTERFERENCE BAND IS EQUAL.
3. THE INTENSITY OF ALL MAXIMA (FRINGES) IS SAME.

DIFFRACTION

1. IT IS DUE TO THE SUPERPOSITION OF SECONDARY WAVELETS ORIGINATING FROM DIFFERENT PARTS OF THE SAME WAVEFRONT.
2. THE WIDTH OF THE DIFFRACTION BANDS IS NOT THE SAME.
3. THE INTENSITY OF CENTRAL MAXIMUM MAXIMUM AND GOES ON DECREASING RAPIDLY WITH INCREASE OF ORDER OF MAXIMA.