State whether a bright fringe or a dark fringe is obtained at a point where the path…

PHYSICS · Subjective · CBSE · Physics · Wave Optics · Wave Optics

Problem

State whether a bright fringe or a dark fringe is obtained at a point where the path difference between the two coherent waves is (i)

nλ

and (ii)

(2n-1)\,\dfrac{λ}{2}

, where

n

is an integer.