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प्रश्न
Does SONAR make use of infrasonic sound?
एका वाक्यात उत्तर
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उत्तर
No, SONAR does not make use of infrasonic waves. Instead, it make use of ultrasonic waves.
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संबंधित प्रश्न
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
Name the sound of the frequency given below:
1000 Hz
State the approximate speed of ultrasound in air.
State two applications of ultrasound.
A man can hear the sound of frequency :
What do you understand by the term sonic vibrations? State the range of sonic vibrations for the human ear.
What does SONAR stand for?
Is the energy carried by the ultrasound very high or very low?
1 hertz is equal to
Ultrasound has frequency of vibration
