engineering physics MCQ #5241

The lattice constant 'a' for a cubic crystal is related to its density by?

engineering physics MCQ #5241

  1. Question 1

    Q1. The lattice constant 'a' for a cubic crystal is related to its density by?

    • A) a³ = nM / N_A ρ
    • B) a³ = nρ / N_A M
    • C) a = nM / N_A ρ
    • D) a = nρ / N_A M

    Answer: a³ = nM / N_A ρ

    Explanation: The density ρ = nM / N_A a³, where n is the number of atoms per unit cell, M is the molar mass, and N_A is Avogadro's number.