The following table is completed but please correct me and explain why is incorrect to improve my undestanding. A sonographer increases the depth of view by a factor of two during an exam. Assume that the signal was sent through soft tissue both before and after the change. Would the following increase, decrease, or remain the same? EXTRA QUESTION: If I decrease the depth if view how would the chart look?

Pulse Repetition Frequency=decrease Pulse Repetition Period=increase Propagation Speed=same Wavelenght=same initial amplitude=same frequency=same pulse duration=same spartial pulse length=decrease duty cycle=remain