For a cubic crystal structure which one of the following relation indicating the cell characteristic is correct ?

Options

A. ` a=b=c and alpha = beta= gamma =90^(@) `
B. `a ne b ne c and alpha ne beta ne gamma ne 90^(@) `
C. `a ne be ne c and alpha = beta = gamma =90^(@)`
D. `a=b=c and alpha ne beta ne gamma =90^(@) `

Answer

A

Explanation

For cubic crystal structure a=b=c= & `alpha=beta=gamma=90^(@)`