0 votes 0 votes Although a laser heam is highly directional, its beam width increases with propagation. This increase is due to coherence diffraction polarization interference Others gate1993-ec + – admin asked Sep 16, 2022 • edited Dec 1, 2023 by makhdoom ghaya admin 46.4k points 97 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.