Consider the bcc cell solids position |SolidStateJEEMain2019

JEE MAIN 2019

08-04-2019 S2

Question

Consider the bcc unit cells of the solids 1 and 2 with the position of atoms as shown below. The radius of atom B is twice that of atom A. The unit cell edge length is 50% more in solid 2 than in 1. What is the approximate packing efficiency in solid 2?

Select the correct option:

A

45%

B

65%

C

75%

D

90%

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Solution

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