waves

Question: A hospital uses an ultrasonic scanner to locate tumours in a tissue. The operating frequency of the scanner is 4.2 MHz. The speed of sound in a tissue is 1.7 km/s. The wavelength of sound in the tissue is close to

1) $4\times {{10}^{-4}}\,m$

2) $8\times {{10}^{-3}}\,m$

3) $4\times {{10}^{-3}}\,m$

4) $8\times {{10}^{-4}}\,m$

Solution:

Explanation: No Explanation

Basics of Mechanical Waves

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