STATEMENT-1: There are two coherent point sources of light having nonzero phase difference are fixed by small distance. Then on the perpendicular bisector of line segment joining both the point sources, constructive interference cannot be obtained.
STATEMENT -2: For two waves from coherent point sources to interfere constructively at a point, the magnitude of their phase difference at that point must be 2 mπ (where m is a nonnegative integer).