Question

S1: Ultrasound velocity in bone is greater than in the brain. S2: Ultrasound acoustic impedance is not related to the density of matter.

• A. S1 is True & S2 True
• B. S1 is True & S2 False
• C. S1 is False & S2 False
• D. S1 is False & S2 True

Hint:

In ultrasound, the speed of sound depends on the medium's density, and acoustic impedance is proportional to both density and the speed of sound.

Answer 1

The Correct Option is B

- S1 is true because ultrasound velocity is higher in bone due to its denser composition compared to the brain.
- S2 is false because ultrasound acoustic impedance is indeed related to the density of matter, with higher density materials having higher acoustic impedance.

Conclusion: S1 is true, and S2 is false, making option (b) the correct answer.