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Ultrasound with a frequency of 4.40 MHz can be used to produce images of the human body. If the speed of sound in the body is the same as in salt water, 1.30 km/s, what is the length of a 4.40-MHz pressure wave in the body

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pstnonsonjoku

Answer:

0.295 m

Explanation:

Velocity of the wave= 1.3Kms-1= 1300ms-1

Frequency of the wave= 4.4MHz= 4400Hz

From

Velocity= wavelength × frequency

Wavelength= velocity/frequency

= 1300/4400

=0.295 m

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