solid state

The diameter of the largest sphere that fis the void at the centre of cube edge of a BCC crystal of lattice parameter a, is?

a)0.293a

b)0.414a

c)0.134a

d)0.336a

8 Answers

1
voldy ·

c

11
Subash ·

ans correct can uplz explain

1
voldy ·

sorry I'm replying late.

here's the diagram . radius of individual sphers is r. blue thing is the one placed in the void.
hope this's fine

11
Subash ·

sry dumble im not getting this yet can u explain a bit more in detail

another doubt does the void here denote the central atom which belongs to the BCC structure or some foriegn sphere

1
voldy ·

void means empty space da. whether it truly does I dunno , but definitely here it denotes that the space is empty.

U know the basic diag of bcc no ?

then the place in which I've drawn the blue one is actually empty , here the blue one occupies this space . now got it ?

11
Subash ·

ok got it thanks

1
voldy ·

diag was not to scale probably that's y u got confused . sry if it's that.

11
Subash ·

no dumble just i dint get it whether the blue one was the original sphere present or what

but now perfectly fine
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