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Packing Fraction and Efficiency

Packing fract...

Question

Packing fraction is minimum in which of the following?

A

Face Centre Cubic

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B

Body Centre Cubic

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C

Simple Cubic Close packing

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D

Hexagonal Close Packing

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Solution

The correct option is C
Simple Cubic Close packing

We know that packing fraction of FCC and HCP is 74%, that of BCC is 68% and that of Simple Cubic is 52%

So, simple cubic has the minimum packing fraction.

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