Question

A hospital uses an ultrasonic scanners to locate the tumours in the tissue .the operating frequency of scanner is 3.2MHZ .The speed of sound in a tissue is 1.6kms-1 .The wavelength of sound in the tissue is ?

Answer 1

Explanation:

v=nλ

v=speed= 1.6km

=1600m/s

n=frequency=3.2×10^3HZ

λ=wavelength

λ=v/n

λ=500×10^-3 m