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In ultrasonography,

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Important Questions on Sound

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Science>Physics>Sound>Ultrasonic Sound and Its Applications
The acronym ‘SONAR’ stands for
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Using the ultrasound scanner, the ultrasonic waves travel through the tissues of the body and get reflected from a region where there is a change of tissue _____________.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications

What happens if my echocardiogram is abnormal?

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Science>Physics>Sound>Ultrasonic Sound and Its Applications
The technique of obtaining images of the heart by using ultrasound is called _____.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
_____ beam used for underwater observation, communication and navigation in the study of oceanography.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications

Which of the following are used to study the growth of foetus inside the mother's womb ?

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Science>Physics>Sound>Ultrasonic Sound and Its Applications
What are the risks of an echocardiogram?
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
__________________ is used for examination of the foetus during pregnancy to detect congenial defects and growth abnormalities.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
The technique of obtaining images of the heart by using ultrasound is called  
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
How the altitude of an aeroplane can be calculated?
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Ultrasound imaging is a useful, non-invasive way of seeing inside the body. For example, to monitor a pregnancy using ultrasound imaging, a transducer is placed against the mother's abdomen. This emits ultrasound waves and detects the echo as they bounce off the foetus. The ultrasound has a frequency of about 2.5 MHz and the waves travel at about 1,500 m s-1.Calculate the wavelength (in micro meter) of the ultrasound.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
In industry ultrasonic waves are widely employed for quality control testing.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Due to the high power of ultrasound waves, it is used for breaking and cutting objects.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
What is an electrocardiogram used for?
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Ultrasonic waves are made to reflect from various parts of the heart and form the image of the heart. This technique is called ____________________.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Explain in detail about sonography.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Ultrasound can be used to test planeness of metal sheets.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Cotyledons are also called-
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Ultrasound is _______________ back from the defective locations inside a metal block.
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Science>Physics>Sound>Ultrasonic Sound and Its Applications
Assertion: Ultrasonic sound is used in industry for detecting flaws (cracks etc) in metal blocks without damaging them.
Reason: An internal crack (or hole) does not allow ultrasound to pass through it.