5
lesson pretestMultiple Choice

Pretest

Question 5 • Physics

How do radiography and sonography compare?

Answer
A
Radiography uses ionizing radiation, but sonography does not.
B
Each technique increases the risk of developing cancer.
C
Each technique uses mechanical waves.
D
Radiography uses X-rays, but sonography uses radio waves.

Explanation

Radiography makes images using X-rays, which are a form of ionizing radiation. Sonography uses high-frequency sound waves, which are mechanical waves and are not ionizing radiation. Therefore, the correct choice is “Radiography uses ionizing radiation, but sonography does not.”

AI-written and checked against the verified answer.

Previous
Next