(a) X-rays from an X-ray machine are shot towards a graphite block. The scattered X-rays are collected at an angle, 9, relative to the incident direction. (i) (ii) (iii) 6V) (V) (vi) State TWO {2} mechanisms to produce X-ray. (2 marks) State TWO (2) parameters used to control the intensity of the X-ray produced by the X-ray machine. (2 marks} X-rays behave like particles in the above statement. Explain what is meant by the \"duality\" property of a photon. (2 marks) Based on the above statement, determine the variable and its value that can cause the largest wavelength shift. (2 marks) Determine the wavelength shift when X-rays are detected at 120" after it is scattered from a free electron in the graphite block. (3 marks) Compare the difference of the X-ray wavelength shift obtained from the scattering in (v) to that from a graphite atom