0 votes 0 votes In an electron diffraction experiment, planes of a crystal with spacing $1 \mathrm{~A}^{\circ}$ between them yield the first maximum at a Bragg angle of $\theta=30^{\circ}$. The momentum of the electrons is __________ $\text{J – s/m}.$ Others gate1993-ec + – admin asked Sep 16, 2022 edited Dec 1, 2023 by makhdoom ghaya admin 46.4k points 95 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.