travel at different speeds through materials of different densities.
Because, sound waves travel at different speeds through materials of different densities .
Yes you can pursue it straight out of high-school. People who go into this profession usually have a fondness for the health care. Ultrasound technicians work in a variety of fields with specialty equipment to produce images of structures inside the body
duplex ultrasound
duplex ultrasound
an ultrasound
Ultrasound displays continuous motion images of internal structures.endoscopy
Ultrasound
Ultrasound imaging uses the echoes of sound waves to create images of deep structures in the body. Sound waves are sent into the body, bounce off tissues, and are then detected to create real-time images of organs, muscles, and other structures.
MRI
Using special instruments, medical professionals can send ultrasonic waves into a specific part of a patients body. reflected ultrasonic waves are used to examine different body parts and to detect and monitor certain types of Heart disease and cancer.
Sonographers use ultrasound sonography to produce such images. "Ultrasound" refers to sound waves with frequencies (pitch) above the range of human hearing. The system works by emitting sound waves and detecting them when they are reflected back. This is analogous to the process of viewing an object illuminated by a flashlight; light and sound are both waves and can be detected with the appropriate instruments.
it can only produce virtual images because whenever an object is placed, a virtual image forms