Electronic Devices Question 177

Question: Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54AA . The value of the lattice constant for this lattice is

[CBSE PMT 2005]

Options:

A) 1.27AA

B) 5.08AA

C) 2.54AA

D) 3.59AA

Show Answer

Answer:

Correct Answer: D

Solution:

2a=4r

Therefore a=4r2=2(2r)=2×2.54=3.59AA



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