A metal crystallizes into two cubic phases, face-centred cubic and body-centred cubic, which have unit cell lengths `3.5` and `3.0 A`, respectively. Calculate the ration of densities of fcc and bcc.

A metal crystallizes into two cubic phases, face-centred cubic and body-centred cubic, which have unit cell lengths 3.5 and 3.0 A , respectively. Calculate the ratio of densities of fcc and bcc.

A metal crystalizes into two cubic phases, face centred cubic (FCC) and body centred cubc (BCC), whose unit cell lengths are 3.5 and 3.0A^(@) , respectively. Calculate the ratio of densities of FCC and BCC.

A metal crystallines into two cubic phases, face centred cubic (fcc) and body centred cubic (bcc), whose unit cell lengths are 3.5 oversetcircA respectively. Calculate the ratio of densities of fcc and bcc.

A Metal crystallizes into two cubic phases, face-centred cubic and body centred cubic whose unit cell lengths are 3.5overset(0)A and 3.0overset(0)A respectively. Calculate the ratio of the densities of fcc and bcc crystals.