An x-rays beam having wavelength 0.300 nm is scattered from the surface of a material. Determine the wavelength for the incident beam if the angle of scattered beam is 70° to the incident beam. (A) 6.82×10-10 m (B) 5.85×10-10 m (C) 2.98×10-10 (D) 1.52×10¬10 m m
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