Question

what are two ways in which ultrasound technology produces images? a. by using sound in frequencies that reflect off body tissues b. by detecting the frequencies of emitted sound waves c. by measuring the time it takes for reflected sound waves to be detected d. by the absorption of sound waves in the body

Explanation:

Ultrasound sends high - frequency sound waves into the body. These waves reflect off different tissues. The machine detects the reflected waves and measures the time it takes for them to return. Based on this information, an image is formed.

Answer:

A. By using sound in frequencies that reflect off body tissues
C. By measuring the time it takes for reflected sound waves to be detected