Practical and homework for lecture #3:
1.) What is the resolution of the following reflections: [1;0;0], [0;1;0], [0;0;1], [2;0;0],
[75;0;0], [1;1;0], [2;0;3], [154;215;0], [32;65;72] from a unit cell with parameters:
a=456 Å, b=213 Å, c=254 Å, α=β=γ=90°. Does the resolution of the reflections
depend on the wavelength used for the diffraction? If yes, what happens if the
wavelength is decreased to 1/2?