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प्रश्न
What is echocardiography?
एका वाक्यात उत्तर
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उत्तर
Echocardiography is used to obtain the image of the heart by the used of ultrasonic waves.
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संबंधित प्रश्न
Name the sound of the frequency given below:
100 Hz
Name the sound of the frequency given below:
40 kHz
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What do you understand by the term sonic vibrations? State the range of sonic vibrations for the human ear.
Name three animals which can hear ultrasonic vibrations.
An electromagnetic wave has a time period of 4 × 10-8 s. Calculate its frequency in MHz.
What are infrasonic and ultrasonic sounds?
The range of audible frequency for the human ear is
