a) Complete the following table using types of dispersions: (5 marks) b) With the aid of diagrams sketch and label the layout of a scanning electron microscope (SEM) and a transmission electron microscope (TEM) with a brief description of how the image is formed for each technique. Your diagram should include the electron source, sample and detector along with the condenser, objective and projector lenses where appropriate. (12 marks) c) With the aid of diagrams describe the operation of a Langmuir trough and how it might be used for deposition. Your answer should make mention of suitable molecules, phases and differing deposition techniques