How does a TEM work?
A) Electrons are shot at atoms; if they collide with electrons in the atoms, a shadow is made.
B) A magnetic field moves electrons in a substance, leaving an impression.
C) Light rays are shot at the electrons, and a microscopic camera takes a photograph of the result.
D) Protons are shot at atoms; if they collide with electrons in the atoms, an shadow is made.
Answer: A
You might also like to view...
Explain why the statement "warm air can hold more water vapour molecules" is misleading and commonly misinterpreted. Suggest a better way to explain this concept.
What will be an ideal response?
One of the greatest drawbacks of using incinerators to burn MSW is that incinerators
A) add to air pollution in the region. B) increase the mass of MSW entering the landfills. C) generate large volumes of toxins that otherwise would not need to be managed. D) require large amounts of coal to burn the MSW.
The most severe hurricane is a category 1 on the Saffir-Simpson scale
Indicate whether the statement is true or false
Earth's magnetic poles, where the lines of force leave and enter the planet, do not coincide with the geographic (rotational) poles).
a. true b. false