The space occupied by spheres in bcc arrangement is :

74 %

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70 %

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68 %

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60.4 %

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Solution

The correct option is D $68 %$
The space occupied by spheres in bcc arrangement is 68%

Space occupied is also called packing efficiency or volume occupied. Packing efficiency is the ratio of the volume occupied by spheres in unit cell to the volume of hcp unit cell multiplied by 100.

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The percentage of empty space in a body centred cubic arrangement is ...............

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