Tim Farron visits St Andrews during campaign tour of Scotland

The video tutorial introduces an X-ray photoelectron spectrometer used for analyzing surface composition. It explains the high vacuum conditions necessary for its operation and the placement of samples. The instructor interacts with students about their exams and discusses the potential impact of Brexit on universities.

What is the primary function of an X-ray photoelectron spectrometer?

• To detect electromagnetic radiation

• To measure atmospheric pressure

• To characterize the surface composition of materials

• To analyze the internal structure of solids

What is the pressure inside the X-ray photoelectron spectrometer compared to atmospheric pressure?

• A millionth of a millionth of atmospheric pressure

• Half of atmospheric pressure

• Twice the atmospheric pressure

• Equal to atmospheric pressure

Where is the sample placed in the X-ray photoelectron spectrometer?

• In an open tray

• Inside a little vessel

• On a rotating disk

• In a sealed bag

What topic is discussed in relation to its impact on the university?

• Globalization

• Technological advancements

• Brexit

• Climate change

Why is Brexit considered a major concern for the university?

• It causes technological disruptions

• It impacts the university on many levels

• It affects the university's funding

• It leads to a decrease in student enrollment