State the lower and upper frequency limits of the audible range of hearing for a healthy human.
A researcher uses an oscilloscope to display an underwater acoustic signal emitted by marine life.
Name the device that must be connected to the oscilloscope to detect this underwater sound wave and convert it into an electrical signal.
Describe how the researcher should use the oscilloscope to determine the frequency of the acoustic wave.
The researcher obtains the trace shown on the grid below.
Describe how the trace on the grid would change if the researcher detects a sound wave that has double the amplitude and half the frequency of the original signal. Reference specific grid division measurements in your answer.
