engineering physics MCQ #5189

A crystal has a lattice parameter of 4 Å. The d-spacing between (1 1 1) planes is

engineering physics MCQ #5189

  1. Question 1

    Q1. A crystal has a lattice parameter of 4 Å. The d-spacing between (1 1 1) planes is

    • A) 2.31 Å
    • B) 4.0 Å
    • C) 2.0 Å
    • D) 1.15 Å

    Answer: 2.31 Å

    Explanation: d = a / √(h² + k² + l²) = 4 / √3 = 2.31 Å, using the formula for interplanar spacing in a cubic lattice.