A beam of x-rays with wavelength 0.2500 nm is directed toward a target. The x-rays scatter from the electrons within the

[answerhappygod]

A beam of x-rays with wavelength 0.2500 nm is directed toward a
target. The x-rays scatter from the electrons within the target.
After scattering, the x-rays are detected at various angles
relative to the direction of the incoming beam using a detector
that can resolve their wavelengths. If the detector measures a
wavelength for the scattered x-rays of 0.25171 nm, what is the
x-ray scattering angle?
**useful constants: ℎ𝑐 = 1239.84 𝑒𝑉 · 𝑛𝑚 𝑚𝑒𝑐 2 = 511 𝑘𝑒𝑉 = 𝑟𝑒𝑠𝑡
𝑚𝑎𝑠𝑠 𝑜𝑓 𝑒𝑙𝑒𝑐𝑡𝑟𝑜�