X-radiation from a molybdenum target (0.626 A) is incident on a crystal with adjacent atomic planes spaced 4.00x10(-10) m apart. Find three smallest angles at which intensity maxima occur in the diffracted beam?

Answer 1

The symbol A should have a above it, and means 1 Angstrom unit.
The wavelength is 0.626*10^-8 cm.

Review and use the Bragg equation to get the diffracted beam angles.

http://www.eserc.stonybrook.edu/ProjectJava/Bragg/