Physics · Oct / Nov 2025 · Paper 12 · Question 26
5054Sound
The table shows the speed and the wavelength for different sound waves in four different materials. | wave | speed of sound / m/s | wavelength / m | |---|---|---| | 1 | 340 | 0.19 | | 2 | 1500 | 0.050 | | 3 | 4000 | 0.23 | | 4 | 6700 | 0.31 | Which waves are ultrasound waves?
- A1 and 3
- B1 only
- C2 and 4
- D4 only
As printed in the paper
Show the answer
Correct answer: C. 2 and 4
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.