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प्रश्न
Sonar makes use of :
विकल्प
infrasonic sound
ultrasound
ordinary sound
light
MCQ
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उत्तर
Sonar makes use of : ultrasound
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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:
10 Hz
Name the sound of the frequency given below:
100 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 infrasonic vibrations?
State four practical uses of ultrasonic vibrations.
What are ultrasonic? State and explain two applications of ultrasounds.
What does SONAR stand for? Where do we make use of SONAR?
