Principles of Radiation Physics Exam Questions and Answers With Verified
Solutions 2025
Which is the outcome when the tissue mass density is increased during differential absorption? -
✔✔There is a proportional increase in Compton interactions.
The quantity of electrons for x-ray exposure is determined by the mAs. How is this calculated? -
✔✔Multiplying the milliamperage by the exposure time
Which is (are) necessary for x-rays to be produced? Select all that apply. - ✔✔A source of electrons
Rapid electron acceleration
Instantaneous deceleration
Which particle has the same configuration as that of the nucleus of helium? - ✔✔Alpha particle
What does the radiation quantity refer to? Select all that apply. - ✔✔The number of x-rays
The intensity of the x-ray beam
A wave on a rope has a frequency of 20 Hz. How many crests are seen in 10 seconds? - ✔✔200
Of the five ways an x-ray can interact with tissue, which are most important at kilovoltage levels used in
diagnostic radiology? - ✔✔Compton scattering
Photoelectric effect
An atom has electrons arranged in four orbital shells around the nucleus. A low-energy x-ray ionizes the
atom by ejecting an electron. Which shell is depleted by the loss of this electron? - ✔✔N
Solutions 2025
Which is the outcome when the tissue mass density is increased during differential absorption? -
✔✔There is a proportional increase in Compton interactions.
The quantity of electrons for x-ray exposure is determined by the mAs. How is this calculated? -
✔✔Multiplying the milliamperage by the exposure time
Which is (are) necessary for x-rays to be produced? Select all that apply. - ✔✔A source of electrons
Rapid electron acceleration
Instantaneous deceleration
Which particle has the same configuration as that of the nucleus of helium? - ✔✔Alpha particle
What does the radiation quantity refer to? Select all that apply. - ✔✔The number of x-rays
The intensity of the x-ray beam
A wave on a rope has a frequency of 20 Hz. How many crests are seen in 10 seconds? - ✔✔200
Of the five ways an x-ray can interact with tissue, which are most important at kilovoltage levels used in
diagnostic radiology? - ✔✔Compton scattering
Photoelectric effect
An atom has electrons arranged in four orbital shells around the nucleus. A low-energy x-ray ionizes the
atom by ejecting an electron. Which shell is depleted by the loss of this electron? - ✔✔N
