Ultrasonic waves of frequency 4.5 MHz are used to detect tumour in soft tissues. The speed of sound
Channel: Doubtnut
Date: 2020-07-12

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.