Echo Sound Trivia App Download | A Level Physics Trivia e-Book PDF | 153
A Level Physics MCQs (A Level) From Textbook

A Level Physics MCQs – Certification Test 153

Echo Sound Trivia (Question 153) – App & e-Book Download

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MCQ 153: Acoustic impedance of human skin is:

  1. 1.65 × 106 kg m² s-1
  2. 1.71 × 106 kg m-2 s-1
  3. 2 × 106 kg m-2 s-1
  4. 2 × 107 kg m-3 s-2
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