Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A metal crystallizes into two cubic systems-face centred cubic (fee) and simple cubic (SC), whose unit cell lengths are 4.5 and 1.5 
respectively. Calculate the ratio of densities efface centred cubic and Simple cubic.
Text Solution
Verified by ExpertsThe correct answer is:
A
0.15
face centred cubic unit cell length = 4.5 
Simple cubic unit cell length = 1.5 
Density in face centred cubic = 
Density simple Cubic (SC) = 
n 1 for face centred cubic = 4; Also V 1 = a 3 = (4.5 x 10 -8 ) 3
n 2 for simple cubic = 1; Also V 2 = a 3 = (1.5 x 10 -8 ) 3
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