Exposure 7th Edition by Terri L. Fauber
, Chapter 01: Radiation and Its Discovery
Fauber: Radiographic Imaging and Exposure, 7th Edition
MULTIPLE CHOICE
1. On what date were x-rays first discovered?
a. October 8, 1985
b. November 8, 1895
c. January 23, 1896
d. August 15, 1902
Answer: B
Wilhelm Conrad Roentgen discovered x-rays on November 8, 1895.
SOURCE: p.1
2. What kind of tube was Roentgen experimenting with when he found x-rays?
a. Crookes tube
b. Fluorescent tube
c. High-vacuum tube
d. Wurzburg tube
Answer: A
Roentgen used a Crookes tube, which is a type of low-vacuum tube.
SOURCE: p.2
3. Which term describes the immediate emission of light during energy interaction with a substance?
a. Phosphorescence
b. Afterglow
c. Glowing
d. Fluorescence
Answer: D
Fluorescence is when light is instantly emitted after energy interacts with a material.
SOURCE: p.2
4. What was the role of barium platinocyanide in Roentgen’s experiment?
a. The type of dark paper that blocked light
b. The substance used for the first hand x-ray
,c. The metal used to build the Crookes tube
d. The glowing material that lit up when the tube was on
Answer: D
Barium platinocyanide coated paper glowed when the tube was activated.
SOURCE: p.2
5. How long was the exposure for Roentgen’s first radiograph of his wife’s hand?
a. 15 seconds
b. 150 seconds
c. 15 minutes
d. 150 minutes
Answer: C
The initial radiograph required a 15-minute exposure time.
SOURCE: p.3
6. In the term “x-ray,” what does the “x” signify?
a. Electricity
b. The unknown
c. Penetration
d. Discovery
Answer: B
The letter “x” represents an unknown value in mathematics.
SOURCE: p.3
7. Who received the first Nobel Prize in Physics in 1901?
a. Marie Curie
b. William Crookes
c. Wilhelm Roentgen
d. Albert Einstein
Answer: C
Roentgen was the first recipient of the Nobel Prize in Physics.
SOURCE: p.4
, 8. What were x-rays once commonly referred to as?
a. Becquerel rays
b. Roentgen rays
c. Z-rays
d. None of the above
Answer: B
X-rays were originally known as Roentgen rays.
SOURCE: p.4
9. What is erythema, an early radiation effect?
a. Skin reddening
b. Malignant growth
c. Chromosomal mutation
d. Most severe radiation effect
Answer: A
Erythema is a mild radiation response that causes redness and burning of the skin.
SOURCE: p.5
10. Which characteristics apply to x-rays?
a. Electrical
b. Magnetic
c. Chemical
d. A and B
e. A and C
Answer: D
X-rays possess both electrical and magnetic traits.
SOURCE: p.5
11. What term refers to the space between two wave crests?
a. Angstrom
b. Frequency
c. Greek letter nu
d. Wavelength
Answer: D