3) Hi, Can you solve the question 3 and make explanation please? and if you are gonna use handwrite please make sure that it is readable thank you. Figure is in the 2nd picture which is figure 2.14 Figure 214 Left: Crystal structure of a hcp crystal. Right: Crystalstructure of graphite. The lines are a mere guide to the eye, notindicating the size of the unit cell. 3. Real crystal structures: Consider the hcp lattice shown in Figure 2.14. The Bravaislattice underlying the hep structure is given by two vectors of length a in one plane,with an angle of 60° between them and a third vector of length c perpendicular tothat pla ne. There are two atoms per unit cell. (a) Show that for the ideal packing ofspheres, the ratio c/a = (8/3)/2. (b) (*) Construct the reciprocal lattice. Does thefact that there are two atoms per unit cell in the hep crystal has any relevance?

Answered: Image /qna-images/answer/9dfe73f1-2613-4381-8aca-a8cb57bf60da.jpg

3. Real crystal structures: Consider the hcp lattice shown in Figur lattice underlying the hcp structure is given by two vectors of le with an angle of 60° between them and a third vector of lengt! that pla ne. There are two atoms per unit cell. (a) Show that for 19/21/2 hi Cenatrust the resi

3. Real crystal structures: Consider the hcp lattice shown in Figur lattice underlying the hcp structure is given by two vectors of le with an angle of 60° between them and a third vector of lengt! that pla ne. There are two atoms per unit cell. (a) Show that for 19/21/2 hi Cenatrust the resi

Understanding Motor Controls

4th Edition

ISBN:9781337798686

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter44: Semiconductors

Section: Chapter Questions

Problem 4RQ

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Concept explainers

Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing. 

Question

3) Hi, Can you solve the question 3 and make explanation please? and if you are gonna use handwrite please make sure that it is readable thank you. Figure is in the 2nd picture which is figure 2.14

Figure 214 Left: Crystal structure of a hcp crystal. Right: Crystal
structure of graphite. The lines are a mere guide to the eye, not
indicating the size of the unit cell.

3. Real crystal structures: Consider the hcp lattice shown in Figure 2.14. The Bravais
lattice underlying the hep structure is given by two vectors of length a in one plane,
with an angle of 60° between them and a third vector of length c perpendicular to
that pla ne. There are two atoms per unit cell. (a) Show that for the ideal packing of
spheres, the ratio c/a = (8/3)/2. (b) (*) Construct the reciprocal lattice. Does the
fact that there are two atoms per unit cell in the hep crystal has any relevance?

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