1.

The fraction of total volume occupied by the atoms in a simple cubic is …………….. .

Answer»

`((PI)/(4sqrt2))`
`((pi)/(6))`
`((pi)/(6))`
`((pi)/(3sqrt2))`

Solution :HINT : `(((4)/(3)pir^(3))/(a^(3)))=(((4)/(3)pi((a)/(2))^(3))/(a^(3)))=((pi)/(6))`


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