What type of reflection occurs from structures that are smaller than the wavelength?
What change typically occurs to the propagation velocity whe…
What change typically occurs to the propagation velocity when the density is increased?
A sonographer increases the amplitude of a wave by a factor…
A sonographer increases the amplitude of a wave by a factor of 5. How has the power changed?
List the four acoustic variables.
List the four acoustic variables.
1) Pressure is defined as _______________.
1) Pressure is defined as _______________.
Describe why a longer spatial pulse length results in worse…
Describe why a longer spatial pulse length results in worse axial resolution.
The ratio of the pulse duration to the PRP is called the Dut…
The ratio of the pulse duration to the PRP is called the Duty Factor.
0.0043 MHz = ?? kHz
0.0043 MHz = ?? kHz
How will the two waves above interfere?
How will the two waves above interfere?
Given the equation y = 9x, an increase in x by a factor of 4…
Given the equation y = 9x, an increase in x by a factor of 4 implies what change to the variable y?