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What is the benefit of using ultrasound over light waves in medical applications?

Important Questions on Sound

EASY
Science>Physics>Sound>Applications of Ultrasound
The acronym ‘SONAR’ stands for
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Science>Physics>Sound>Applications of Ultrasound
+List the uses of ultrasonic waves due to their high frequency.
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Science>Physics>Sound>Applications of Ultrasound
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves?
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Science>Physics>Sound>Applications of Ultrasound
Explain the technology of ultrasonography used in medical diagnosis.
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Science>Physics>Sound>Applications of Ultrasound
The technique of obtaining images of the heart by using ultrasound is called  
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Science>Physics>Sound>Applications of Ultrasound
Write the full name of 'SONAR'.
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Science>Physics>Sound>Applications of Ultrasound
Explain how we get the images of our heart.
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Science>Physics>Sound>Applications of Ultrasound
Give one use of ultrasound in industry and one in hospitals.
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Science>Physics>Sound>Applications of Ultrasound
Name the instrument used to receive sound waves under water.
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Science>Physics>Sound>Applications of Ultrasound
A sonar device attached to a ship sends out ultrasound produced and is detected after 4 seconds. If the speed of ultrasound in sea-water is 1600 m/s, what is the distance of the seabed from the ship?
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Science>Physics>Sound>Applications of Ultrasound
How is ultrasound used in removing kidney stones?
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Science>Physics>Sound>Applications of Ultrasound
Give any two uses of ultrasonic in industries.
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Science>Physics>Sound>Applications of Ultrasound
State one use of reflection of sound.
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Science>Physics>Sound>Applications of Ultrasound
Why do we prefer ultrasonic frequencies for real-life applications?
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Science>Physics>Sound>Applications of Ultrasound
How is an ultrasound scan for the foetus (unborn baby) better than X-ray?
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Science>Physics>Sound>Applications of Ultrasound
Using sonar, sound pulses are emitted at the surface. The pulses, after being reflected from the bottom, are detected. If the time interval from the emission to the detection of the sound pulses is 2 seconds, find the depth of the water. (take velocity of sound through water, v=1500 m/s)
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Science>Physics>Sound>Applications of Ultrasound
What is the use of ultrasound scanner?
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Science>Physics>Sound>Applications of Ultrasound
Explain how cracks are determined in metal blocks.
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Science>Physics>Sound>Applications of Ultrasound
A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531 m s-1, how far away is the cliff?
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Science>Physics>Sound>Applications of Ultrasound
Why do we prefer ultrasonic sound over other frequencies like X-rays for medical applications?