WAVE-PARTICLE DUALITY AND BOHRS COMPLEMENTARITY PRINCIPLE IN QUANTUM-MECHANICS

Interest in Bohr's complementarity principle has recently been revived particularly because of several thought experiments and some actually performed experiments to test the validity of mutual exclusiveness of wave and particle properties. A critical review of the situation is u ndertaken and it is pointed out that the problem,vith mutual exclusive ness arises because of some vagueness in the conventional formulation. An attempt is made to remove this vagueness by connecting the origin of mutual exclusiveness to some principles of quantum mechanics. Accor dingly, it becomes obvious that to contradict complementarity principl e without contradicting quantum mechanics would be impossible. Some of the recent experiments are critically analysed.