Physics
The sound of frequency less than 20 Hz is called :
- supersonic
- infrasonic
- ultrasonic
- ultrasound
Related Questions
…………… can hear the highest frequency range of sound.
- Whales
- Dogs
- Cats
- Bats
Choose the correct statement :
- Ultrasonic waves travel faster than supersonic waves.
- Sonic waves travel faster than supersonic waves.
- Sonic waves travel faster than ultrasonic waves.
- Sonic and ultrasonic waves travel with the same speed.
The properties of ultrasound that make it useful, are:
- High power and high speed
- High power and good directivity
- High frequency and high speed
- High frequency and bending around the objects
Sonar makes use of:
- Infrasonic sound
- Ultrasound
- Supersonic sound
- Light