Question

The correct relationships between unit cell edge length ‘a’ and radius of sphere ‘r’ for face-centred and body-centred cubic structures respectively are:

• A. \(2\sqrt 2r = a\) and \(4r = \sqrt 3 a\)
• B. \(r = 2\sqrt 2a\) and \(\sqrt 3 r = 4a\)
• C. \(r = 2\sqrt 2a\) and \( 4r = \sqrt 3a\)
• D. \(r = 2\sqrt 2a\) and \( \sqrt 3r =4a\)

Answer 1

The Correct Option is A

The correct option is (A): \(2\sqrt 2r = a\) and \(4r = \sqrt 3 a\)