The fraction of total volume occupied by atoms in a simple cube is
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a
π2
b
3π8
c
2π6
d
π6
answer is D.
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Detailed Solution
In a simple cubic arrangement, the number of atoms is 1. Also, a = 2rTherefore, packing fraction P.F =volume occupied by particlesvolume of unit cell = 4/3πr3×Za3 But Z = 8×18=1 =43πr3×1(2r)3 =π6