Crystallography — CSIR Net PYQ (Question 1)

A Crystallography previous-year question (PYQ) from Solid State Physics (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 1 of 10 · 5.0 marks

Consider a hexagonal lattice with basis vectors as shown in the figure below. If the lattice spacing is $a=1$, the reciprocal lattice vectors are

1. 1$\left(\frac{4\pi }{3},0\right),\left(-\frac{2\pi }{3},\frac{2\pi }{\sqrt{3}}\right)$
2. 2$\left(\frac{4\pi }{3},0\right),\left(\frac{2\pi }{3},\frac{2\pi }{\sqrt{3}}\right)$
3. 3$\left(0,\frac{4\pi }{\sqrt{3}}\right),\left(\pi ,\frac{2\pi }{\sqrt{3}}\right)$
4. 4$\left(\frac{2\pi }{3},\frac{2\pi }{\sqrt{3}}\right),\left(-2\pi ,\frac{2\pi }{\sqrt{3}}\right)$

Correct answer: Option 1

About this question

This Crystallography PYQ is part of the Solid State Physics section of CSIR Net. Browse more Crystallography questions or join the PhysicsByAaryan live batch for full conceptual coverage.