Week 1 Flashcards
(10 cards)
What does a photometer do?
It convertd light into electric current
What are photons?
Tiny quantizied packets of light
What happens in the photoelectric effect?
Light hits a metal and electrons are emitted
What should the digital multimeter be set to read?
voltage
Which of the following does not describe projection imaging?
Produces images of selected planes or slices of tissue of the patient’s body
Which of the following does not decribe tomographic imaging?
A large volume of the patients body can be viewed with one image
An ordinary dental X-ray uses which imaging techniques?
Projection
Which of the following is not a requirement for a suitable probe beam?
It interacts with a large number of cells
Some wave energy can penetrate and pass through a sample. This is a description of what type of interaction with matter?
transmission
Which of the following is true for the reflection coefficient for a perfect mirror?
Ir/io=1
