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If 'a' stands for the edge length of the...

If `'a'` stands for the edge length of the cubic systems: simple cubic,body centred cubic and face centred cubic then the ratio of radii of the spheres inthese systems will be respectively,

A

`(1)/(a):(sqrt(3))/(4)a:(1)/(2sqrt(2))a`

B

`(1)/(2)a:(sqrt(3))/(4)a:(1)/(2sqrt(2))a`

C

`(1)/(2)a:(sqrt(3))/(2)a:(sqrt(2))/(2)a`

D

`1a:sqrt(3)a:sqrt(2)a`

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A
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If a stands for the edge length of the cubic system : simple cubic, body - centred cubic anf face - centred cubic, then the ratio of radii of the spheres in these systems will be respectively :

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