What kind of wave does ultrasound belong to and has certain radiation?
A: Electromagnetic wave
B: Mechanical wave
C: Particle wave
D: Light wave
A: Electromagnetic wave
B: Mechanical wave
C: Particle wave
D: Light wave
举一反三
- The sound wave is (). A: Mechanical transverse wave B: Mechanical longitudinal wave C: Electromagnetic wave D: X<br/>rays.
- A<br/>piezoelectric crystal is used to produce the ultrasound waves. What<br/>kind of ultrasound is produced? () A: Pressure<br/>wave ultrasound B: Electrical<br/>wave ultrasound C: Sound<br/>wave ultrasound D: Simple<br/>ultrasound
- ____: n. the rate at which a sound wave, light wave, or radio wave moves up and down 震动频率
- In a ( ), the oscillations are perpendicular to the direction in which the wave travels. An example is a wave on a string. A: transverse wave B: longitudinal wave
- Seismic waves include P wave, S wave, Rayleigh wave and Love wave, of which the fastest is P wave.