Q.

Acoustic impedance of human skin is {{}}

A. 1.65 × 106 kg m2 s-1
B. 1.71 × 106 kg m-2 s-1
C. 2 × 10 6 kg m-2 s-1
D. 2 × 107 kg m-3 s-2
Answer» B. 1.71 × 106 kg m-2 s-1
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