Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 25
25. For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct?
(a) $a \neq b \neq c$ and $\alpha=\beta=\gamma=90^{\circ}$
[2007]
(b) $a=b=c$ and $\alpha \neq \beta \neq \gamma=90^{\circ}$
(c) $a=b=c$ and $\alpha=\beta=\gamma=90^{\circ}$
(d) $a \neq b \neq c$ and $\alpha \neq \beta$ and $\gamma \neq 90^{\circ}$
Show Answer
Answer:
Correct Answer: 25. (c)
Solution:
- (c) For a cubic crystal,
$a=b=c$ and $\alpha=\beta=\gamma=90^{\circ}$
