4. Characterization Techniques

Electron Microscopy — Quiz

Test your understanding of electron microscopy with 5 practice questions.

Practice Questions

Question 1

Which advanced electron microscopy technique is specifically designed to analyze the crystallographic structure and elemental composition at atomic resolution by combining imaging and spectroscopy?

Question 2

When considering the wave-particle duality of electrons, what is the primary factor that allows electron microscopes to achieve significantly higher resolution compared to optical microscopes?

Question 3

In Transmission Electron Microscopy (TEM), what is the primary function of the objective aperture and how does it influence image formation?

Question 4

Which of the following interactions between the electron beam and the sample is primarily responsible for generating the image in a Scanning Electron Microscope (SEM) that reveals surface topography?

Question 5

Calculate the relativistic mass ($m$) of an electron with a kinetic energy ($E_k$) of $200 \text{ keV}$. Given: rest mass of electron ($m_0$) = $9.109 \times 10^{-31} \text{ kg}$, speed of light ($c$) = $3.00 \times 10^8 \text{ m/s}$, elementary charge ($e$) = $1.602 \times 10^{-19} \text{ C}$. Use the formula: $E_k = (m - m_0)c^2$.