Calculate the distance between (111) planes in a crystal of calcium. Repeat the calculation for (222) planes. Which palnes are closer ? (a = 0.556 nm)

Calculate the distance between 200, 110 and 222 planes of a body centred cube. The length of the side of the unit cell is 5.4 Å.

What is the distance between points ( - 4 , 0) and ( 6 , 0) on coordinate plane ?

Calculate the miller indices of crystal. Planes which cut through the crystal axes at

Calculate the miller indices of crystal. Planes which cut through the crystal axes at

The largest distance between the interatomic planes of crystal is 10^(-7) cm . The upper limit for the wavelength of X - rays which can be usefully studied with this crystal is