Question 1

When were x-rays discovered?

Accepted Answer

A)  October 8, 1985 
B)  November 8, 1895 
C)  January 23, 1896 
D)  August 15, 1902 B

Question 2

X-rays used in radiography have wavelengths that are measured in:

Accepted Answer

A)  angstroms. 
B)  millimeters. 
C)  centimeters. 
D)  inches. A

Question 3

The speed of light is:

Accepted Answer

A)  3 ´ 108 meters per second. 
B)  3 ´ 108 miles per second. 
C)  186,000 miles per second. 
D)  a and c. D

Question 4

Which of the following is a correct description of the relationship between the wavelength and the frequency of the x-ray photon?

Accepted Answer

A)  Wavelength and frequency are directly proportional. 
B)  Wavelength and frequency are inversely related by the square root of lambda. 
C)  Frequency and wavelength are inversely related. 
D)  Wavelength and frequency have no relationship to each other.

Question 5

Chemical changes may occur as a result of exposure to ionizing radiation.

Accepted Answer

A) True 
 B)False

Question 6

The frequency of a wave is the number of waves passing a given point per given unit of time. Frequency is measured in:

Accepted Answer

A)  angstroms. 
B)  Hertz. 
C)  inches. 
D)  eV.

Question 7

The letter "x" in x-ray is the symbol for:

Accepted Answer

A)  electricity. 
B)  the unknown. 
C)  penetrating. 
D)  discovery.

Question 8

X-rays carry a negative charge that causes ionization.

Accepted Answer

A) True 
 B)False

Question 9

X-ray photons are capable of traveling around corners.

Accepted Answer

A) True 
 B)False

Question 10

The first Nobel Prize for physics was received in 1901 by:

Accepted Answer

A)  Marie Curie. 
B)  Crookes. 
C)  Wilhelm Roentgen. 
D)  Einstein.

Question 11

X-ray photons travel at the speed of light in a vacuum.

Accepted Answer

A) True 
 B)False

Question 12

What type of tube was Roentgen working with in his lab when x-rays were discovered?

Accepted Answer

A)  Crookes tube 
B)  Fluorescent tube 
C)  High-vacuum tube 
D)  Wurzburg tube

Question 13

The first radiograph produced by Roentgen, of his wife's hand, required an exposure time of:

Accepted Answer

A)  15 seconds. 
B)  150 seconds. 
C)  15 minutes. 
D)  150 minutes.

Question 14

The distance between two successive crests of a sine wave is known as:

Accepted Answer

A)  an angstrom. 
B)  frequency. 
C)  the Greek letter nu. 
D)  wavelength.

Question 15

Which of the following terms could be defined as the instantaneous production of light caused by an interaction between a type of energy and some element or compound?

Accepted Answer

A)  Phosphorescence 
B)  Afterglow 
C)  Glowing 
D)  Fluorescence

Question 16

X-rays are invisible.

Accepted Answer

A) True 
 B)False

Question 17

Barium platinocyanide was the:

Accepted Answer

A)  type of dark paper Roentgen used to darken his laboratory. 
B)  material Roentgen used to produce the first radiograph of his wife's hand. 
C)  metal used to produce the low-vacuum tube. 
D)  fluorescent material that glowed when the tube was energized.

Question 18

A _____ is a small, discrete bundle of energy.

Accepted Answer

A)  phaser 
B)  quark 
C)  photon 
D)  mesion

Question 19

Erythema, an early sign of biological damage due to x-ray exposure, is:

Accepted Answer

A)  reddening of the skin. 
B)  a malignant tumor. 
C)  a chromosomal change. 
D)  one of the most serious effects of x-ray exposure.

Question 20

X-rays have which of the following properties?

Accepted Answer

A)  Electrical properties 
B)  Magnetic properties 
C)  Chemical properties 
D)  a and b

Exam 1: Radiation and Its Discovery

When were x-rays discovered?

X-rays used in radiography have wavelengths that are measured in:

The speed of light is:

Which of the following is a correct description of the relationship between the wavelength and the frequency of the x-ray photon?

Chemical changes may occur as a result of exposure to ionizing radiation.

The frequency of a wave is the number of waves passing a given point per given unit of time. Frequency is measured in:

The letter "x" in x-ray is the symbol for:

X-rays carry a negative charge that causes ionization.

X-ray photons are capable of traveling around corners.

The first Nobel Prize for physics was received in 1901 by:

X-ray photons travel at the speed of light in a vacuum.

What type of tube was Roentgen working with in his lab when x-rays were discovered?

The first radiograph produced by Roentgen, of his wife's hand, required an exposure time of:

The distance between two successive crests of a sine wave is known as:

Which of the following terms could be defined as the instantaneous production of light caused by an interaction between a type of energy and some element or compound?

X-rays are invisible.

Barium platinocyanide was the:

A _____ is a small, discrete bundle of energy.

Erythema, an early sign of biological damage due to x-ray exposure, is:

X-rays have which of the following properties?