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Tetragonal crystal system has the follow...

Tetragonal crystal system has the following unit cell dimensions `:`

A

`a=b=c=` and `alpha=beta=gamma=90^(@)`

B

`a=b ne c` and `alpha=beta=gamma=90^(@)`

C

`a ne b ne c` and `alpha=beta=gamma=90^(@)`

D

`a=b ne c` and `alpha=beta=90^(@),gamma=120^(@)`

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The correct Answer is:
A
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