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प्रश्न
Does SONAR make use of infrasonic sound?
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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.
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| I | II |
 |
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| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
Complete the following sentence:
Bats can produce and hear ___________ sound.
Complete the following sentence:
Elephants produce ____________sound.
Explain how do bats locate the obstacles and prey in their way.
A man can hear the sound of frequency :
What do you understand by the term ultrasonic vibrations?
The sonic boom of an aircraft has a time period of 0.00005s. Calculate the frequency of sound produced.
An electromagnetic wave has a time period of 4 × 10-8 s. Calculate its frequency in MHz.
Is the energy carried by the ultrasound very high or very low?
Bats produce ______ sound during screaming.
