Final answer:
The ultrasonography method uses high-frequency ultrasound for both medical diagnostics and nondestructive testing in various industries to locate defects by creating visual images from reflected sound waves.
Step-by-step explanation:
The ultrasonography examination method uses high-frequency vibrations to locate defects. This technique involves the transmission of high-frequency sound waves, far beyond the range of human hearing, known as ultrasound, into the body or other materials. The sound waves reflect from internal structures or flaws and are captured by a detector, which converts them into a visual image. This method is widely used for medical diagnostics, such as observing a fetus in the womb, as well as in industry and by the military for nondestructive testing to reveal cracks and voids in solids that are too small to be seen with x-rays.