What concept did Niels Bohr introduce to describe that wave and particle descriptions are mutually exclusive yet both necessary for completeness?

Answer

Complementarity.

Niels Bohr formalized the observation that wave and particle descriptions are mutually exclusive yet both necessary for a complete understanding of the quantum entity under the principle of complementarity.

What concept did Niels Bohr introduce to describe that wave and particle descriptions are mutually exclusive yet both necessary for completeness?

#Videos

Wave Particle Duality Explained | Perimeter Institute for Theoretical ...

physicsquantumparticlewaveduality