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प्रश्न
What does SONAR stand for?
एका वाक्यात उत्तर
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उत्तर
SONAR stands for "sound navigation and ranging".
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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.
State the approximate speed of ultrasound in air.
Explain how do bats locate the obstacles and prey in their way.
State two applications of ultrasound.
Sonar makes use of :
State four practical uses of ultrasonic vibrations.
Does SONAR make use of infrasonic sound?
1 hertz is equal to
Ultrasound has frequency of vibration
Bats produce ______ sound during screaming.
