X-rays of 10 keV energy are used to determine the crystal lattice structure of fcc solid. The lattice constant of solid is a = 0.124. Which of the following options is/are correct? The interplanar spacing of the plane (111) is 0.07 The interplanar spacing of the plane (111) is 0.03 The angle of diffraction for (111) plane is 117 degree The angle of diffraction for (111) plane is 97 degree