The ultrasonic sound waves employed in ultrasound machine for medical sonography have the frequency of
Frequency refers to a characteristic of the sound that is, the number of times that conduction paicles vibrate back and foh per second. Frequency of sound waves is usually between 1 and 20 MHz in medical sonography. Hence the best answer for this question would be A. 2-20 MHz Christensen's Physics of Diagnostic Radiology, 4/E,Pg no 347
2 - 20 MHz
Less than 1 MHz
20-20,000 Hz
Greater than 100 MHz
Fundamentals in Radiology