Question

an ultrasound tech is trying to identify an object, but the machine is broken and is not sending out the sound wave. which statement best describes this situation? the generated sound wave will not be able to reflect off of the object. the sound wave will not be generated, so there will be no echoes received. the echoes will be made but will be unable to be received by the machine. the machine can process echoes into images, but with the broken screen, they cant be displayed.

Explanation:

Ultrasound works by generating sound waves. If the machine is not sending out sound waves (i.e., not generating them), there can be no echoes (since echoes are reflections of the sound waves). The first option is wrong as no sound wave is generated in the first place (so no question of reflection). The third option is wrong as no sound wave means no echoes are made. The fourth option is about a broken screen (not relevant as the problem is the machine not sending sound waves).

Answer:

The sound wave will not be generated, so there will be no echoes received.