X rays with a wavelength of 0.12 nm undergo first-order diffraction from a crystal at a 76 ? angle of incidence.
What is the angle of second-order diffraction?
m*? = 2d*sin(?)
? is the wavelength,
d is the distance between crystal planes,
? is the angle of the diffracted wave (Theta).
and m is an integer known as the order of the diffracted beam.
this is wrong someone help