Question text
26 The table shows the speed and the wavelength for different sound waves in four different materials. speed of sound wavelength wave m / s / m 1 340 0.19 2 1500 0.050 3 4000 0.23 4 6700 0.31 Which waves are ultrasound waves? A 1 and 3 B 1 only C 2 and 4 D 4 only
26 The table shows the speed and the wavelength for different sound waves in four different
materials.
speed of sound wavelength
wave
m / s / m
1 340 0.19
2 1500 0.050
3 4000 0.23
4 6700 0.31
Which waves are ultrasound waves?
A 1 and 3 B 1 only C 2 and 4 D 4 only
Select your answer: