Ultrasonic waves of frequency 4.5 MHz are used to detect tumour in soft tissues. The speed of sound in tissue is 1.5 km s-1 and that in air is 340 m s-1. Find the wavelength of this ultrasonic wave in air and in tissue.
(a) Given:
Frequency of ultrasonic wave
Velocity of air v = 340 m/sec
Speed of sound in tissue = 1.5 km/s
Wavelength
As we know,
Velocity of sound in tissue