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प्रश्न
What do you understand by the term ultrasonic vibrations?
एक पंक्ति में उत्तर
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उत्तर
Those vibrations, whose frequency is more than 20000 hertz and are not perceived by human ear, are known as ultrasonic vibrations.
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संबंधित प्रश्न
Complete the following sentence:
Infrasonic sound is of frequency ______________.
Name the sound of the frequency given below:
10 Hz
Name the sound of the frequency given below:
40 kHz
Explain how do bats locate the obstacles and prey in their way.
The properties of ultrasound that make it useful are
Sonar makes use of :
How do bats locate their prey during a flight?
What does SONAR stand for?
State the properties of ultrasound that make it useful.
Bats produce ______ sound during screaming.
