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प्रश्न
What is echocardiography?
एका वाक्यात उत्तर
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 sentence:
Infrasonic sound is of frequency ______________.
Name the sound of the frequency given below:
100 Hz
Name the sound of the frequency given below:
1000 Hz
State the approximate speed of ultrasound in air.
What do you understand by the term sonic vibrations? State the range of sonic vibrations for the human ear.
State four practical uses of ultrasonic vibrations.
The sonic boom of an aircraft has a time period of 0.00005s. Calculate the frequency of sound produced.
What are ultrasonic? State and explain two applications of ultrasounds.
What are hearing aids?
1 hertz is equal to
