X-rays of wavelength of 0.4500 nm are scattered from free electrons in a target. What is the wavelength of photons scattered at 60° relative to the incident rays? (h = 6.63 × 10-34 Js, me = 9.11 × 10-31 kg, c = 3 × 108 m/s)

• A. 0.4476 nm
• B. 0.4512 nm
• C. 0.4524 nm
• D. 0.4488 nm