Metallurgical Engineering > GATE 2025 > X-ray Diffraction
X-ray diffraction using a monochromatic radiation of wavelength 0.154 nm is performed on powder samples of metal A (with FCC crystal structure) and metal B (with BCC crystal structure).
If the first peak in both the cases occurs at a Bragg angle θ=20°, then the value of lattice parameter of metal A / lattice parameter of metal B is ______ (rounded off to two decimal places).
If the first peak in both the cases occurs at a Bragg angle θ=20°, then the value of lattice parameter of metal A / lattice parameter of metal B is ______ (rounded off to two decimal places).
Correct : 1.03
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