What is the minimum value of the duty factor?

The time from the beginning of a pulse until its end is _____?

A pulse is emitted by a transducer and is traveling in soft tissue. The go-return time, or time-of-flight, of a sound pulse is 130 microseconds. What is the reflector depth

If the frequency of US is increased from 0.77 MHz to 1.54 MHz, what happens to the wavelength?

Impedance is the _____ of _____and_____.

The intensity transmission coefficient at the interface between two structures equals 50/100. what is the intensity reflection coefficient?

The duty factor for continuous wave ultrasound is:

For soft tissue, the approximate attenuation coefficient in dB/cm is equal to one-half _____ in _____.

The speed of US in soft tissue is closest to:

The frequency closest to the lower limit of US is: