Question

Why is ultrasound so useful? Describe two major applications of ultrasound.

Answer 1

Ultrasound:

1. 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.
2. The physical properties of ultrasound are similar to the normally audible sound.
3. This type of scientific concept is used in many different fields such as navigation, medicine, imaging, cleaning, mixing, communication, testing, etc.
4. Even in nature, bats and porpoises use this particular technique for the location of prey and obstacles. In the following section, we shall learn about its applications.

Major Applications:

1. Ultrasonography: Medical ultrasound is a diagnostic imaging technique based on it. It is used for the imaging of internal body structures such as muscles, joints, and internal organs.
2. Echocardiography: In the process of electrocardiography, ultrasonic waves are used to form an image of the heart using reflection and detection of these waves from various parts.