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प्रश्न
What do you understand by the term ultrasonic vibrations?
एका वाक्यात 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:
Ultrasound is of frequency ___________.
Complete the following sentence:
Infrasonic sound is of frequency ______________.
Name the sound of the frequency given below:
10 Hz
What is ultrasound?
Explain how do bats locate the obstacles and prey in their way.
State two applications of ultrasound.
How do bats locate their prey during a flight?
State four practical uses of ultrasonic vibrations.
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Describe a simple method to find the depth of a submerged ship.
