Which of these is/are applications of Ultrasonic Waves?a)Measuring de...
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 like the normal audible sound
Applications include:
- Measuring the depth of the sea (SONAR)
- Sterilizing medical equipment
- Cleaning the various industry-specific Machinery parts
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Which of these is/are applications of Ultrasonic Waves?a)Measuring de...
Applications of Ultrasonic Waves
Ultrasonic waves, defined as sound waves with frequencies above the audible range for humans (above 20 kHz), have a wide range of practical applications across various fields. Below are the applications mentioned in the question:
Measuring Depth of the Sea
- Ultrasonic waves are used in sonar technology to measure the depth of water bodies.
- By emitting sound waves and measuring the time it takes for the echo to return, the depth can be accurately calculated.
Cleaning Cloths and Machinery Parts
- Ultrasonic cleaning is a widely used method to clean delicate items such as jewelry, lenses, and intricate machinery parts.
- The high-frequency sound waves create cavitation bubbles in a cleaning solution, effectively removing dirt and contaminants from surfaces.
Sterilizing a Liquid
- Ultrasonic waves are also used for sterilization purposes, particularly in the medical and food industries.
- The waves can disrupt microbial cells, effectively eliminating bacteria and other pathogens in liquids without the need for harsh chemicals.
Conclusion
Given the versatility of ultrasonic waves, they find applications in measuring, cleaning, and sterilizing, making option 'D' (All of the above) the correct answer. This demonstrates the importance and utility of ultrasonic technology in various sectors, including marine, industrial, and healthcare.
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