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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
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
Name the sound of the frequency given below:
10 Hz
Name the sound of the frequency given below:
1000 Hz
Name three animals which can hear ultrasonic vibrations.
How do bats locate their prey during a flight?
What is Galton’s whistle? To what use is it put?
What are hearing aids?
State the main components of a hearing aid.
Ultrasound has frequency of vibration
The range of audible frequency for the human ear is
