Answer to Question #174083 in Physics for Sam

Question #174083

A sound wave travels from bone(Z =8.0 x 10^6 kgm-2s-1)to water . What will the intensity of the reflected wave be as a percentage of the intensity of the incident waves?

Expert's answer

Reflection fraction

"\\frac{(Z_2-Z_1)^2}{(Z_2+Z_1)^2}=\\frac{(8-1.48)^2}{(8+1.48)^2}=0.473=47.3\\%"

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. 10. The density of water at 200C is 1000kgm-3 and its acoustic impedance is 1.5 x 106kgm-2s-1. What
2. 9. X-rays are used to images a bone in a patient ‘s leg. the X-rays have an intensity of 30.0Wm-2
3. 8. The activity of a radioactive sample fell from 2400Bq to 75 Bq over period of 24 hours. How long
4. 7. A sample constant 4.5 x 1018 atoms of a radioactive isotope . If it has a decay constant of 1.1
5. 6. The decay constant of uranium -238 is 4.9 x 10-18s-1. Calculate its half life in seconds and in y
6. 5. X-rays hit a lead block with an intensity of 200Wm-2. Lead has a linear attenuation coefficient
7. 4. Calculate the ratio between the intensity of the ultrasound that enters the body when a coupling