For a cubic crystal the diffraction line from the planes with h +k* +1 =8 is observed at an angle of diffraction 10.23°. it only one line is observed at an angl

For a cubic crystal the diffraction line from the planes with h +k* +1 =8 is observed at an angle of diffraction 10.23°. It only one line is observed at an angle lower than this, the crystal structure is Simple cubic BCC O FCC