A hospital uses an ultrasonic scanner to locate tumors in a tissue. What is the wavelength of ultrasound in a tissue in which
the speed of ultrasound is 320000m/s ? The operating
frequency of the scanner is 4x103Hz?
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Explanation:
The wavelength can be given by
λ=
ν
c
=
4.2×10
6
1.7×10
3 =4.04×10 −4 m
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