Question

What is ultrasound? State two uses of ultrasound. ​

Answer 1

✪Ultrasound: The Sounds having too high frequency ( greater than 20,000 Hertz ) which hich cannot be heard by human beings is called Ultrasound .

Some uses of ultrasound:

• Ultrasound is used in the treatment of muscular pain and disease called arthritis.

• Ultrasound is used to measure the depth of sea or ocean. It is also used to locate under - water objects like submarines , shoals of fish, etc.

• Ultrasound is used as a diagnostics tool in medical science to investigate inside of the human body.

• Ultrasound is used in industry for detecting flaws in metal blocks without damaging them.

Answer 2

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ULTRASOUND

Sound waves with frequencies higher than the upper audible limit of human hearing are called ultrasound. The limit varies from person to person but is approximately 20,000 Hertz. The physical properties of ultrasound are similar to the normal audible sound.

• This type of scientific concept is used in many different fields such as navigation, medicine, imaging, cleaning, mixing, communication, testing etc.
• Even in nature, bats and porpoises use this particular technique for the location of prey and obstacles.