Question

the operating frequency of scanner is 4.2MHz and the speed of sound in tissue is 1.7km/sec .the wavelength of sound is

Answer 1

velocity = wavelength × frequency

wavelength =velocity/frequency
velocity = 1.7km/s = 1.7 × 10^3 m/s
frequency = 4.2mhz = 4.2 × 10^6 Hz

calculate it you will get the answer

1.7/4.2= 0.4×10^-3

Answer 2

Wavelength = Velocity of wave / Frequency of wave
= (1.7 × 10³ m/s) / (4.2 × 10⁶ Hz)
= 0.00040 m
= 0.40 mm

Wavelength of sound wave is 0.40 mm