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Question

If radius of a sphere in simple cube is 3 nm, what will be the edge length of an unit cell?


A

6 x 10-9 m

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B

9 x 10-9 m

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C

3 x 10-9 m

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D

1.5 x 10-9 m

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Solution

The correct option is A

6 x 10-9 m


In simple cube a = 2r, r = 3 nm and 1 nm = 1x 10-9 m so edge = 6 x 10-9 m


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