1) How many total constituent particles are present in a simple cubic unit cell? A) 1 B) 3 C) 4 D) 2 Answer: Option AExplanation: A simple cubic lattice has only eight atoms on the corners. As the contribution by each = $\frac{1}{8}$ Therefore , a number of constituent particles (atoms) present in a unit cell = $\frac{1}{8}\times 8=1$
