What are the uses of ultrasonic wave?
The different uses of ultrasound are in navigation, cleaning, medical field, crack detection in metals, etc. Out of these, the medical field has multiple applications like echocardiography, lithotripsy, ultrasonography.
What are the methods for production of ultrasound?
There are three methods for producing Ultrasonic waves. They are: (i) Mechanical generator or Galton’s whistle. (ii) Magnetostriction generator….Merits:
- Magnetostrictive materials are easily available and inexpensive.
- Oscillatory circuit is simple to construct.
- Large output power can be generated.
What are two uses of ultrasonic?
ii) Ultrasonic vibrators are used to drive rats and cockroaches away from godowns. iii) Ultrasonic vibrations are used for making image of internal organs of human body. They can be used to study the growth of foetus in mother’s womb.
Which effect is used to produce ultrasonic waves?
Explanation: When an alternating magnetic field is applied to a ferromagnetic material, then the rod is thrown into vibrations, thereby producing ultrasonic waves at resonance. Therefore ultrasonic waves can be produced using magnetostriction effect.
How are ultrasonic useful to us?
The ultrasonic waves are high frequency sound waves with smaller wavelength. These waves travel with speed equal to the speed of sound in a given medium. These waves can produce heating effect and weld certain plastics, metals etc. These can produce vibrations in low viscosity liquids.
What are ultrasonic waves How are they produced?
Crystals of materials such as quartz vibrate very fast when electricity is passed through them—an effect called “piezoelectricity.” As they vibrate, they manipulate the air around them and the fluids they come in contact with, producing ultrasound waves.
What are ultrasonic waves Name two animals which can produce ultrasonic waves?
Answer : Sound waves of frequencies greater than 20,000 Hz are called ultrasonic waves. Porpoises and bats produce ultrasonic waves.
What are the five uses of ultrasonic sound?
Different Applications of Ultrasound
- Cleaning Hard to Reach Parts. They are used for cleaning Hard to reach places.
- Detecting Cracks in Metal Blocks. Metal blocks are used in building bridges,machines etc.
- Echocardiography (ECG)
- Breaking Kidney Stones.
- Ultrasound scanners.
- Find Distance(SONAR)
How the ultrasonic wave are produced using the magnetostriction?
The rod starts vibrating due to magnetostrictive effect. The vibrations of the rod create ultrasonic waves. The longitudinal expansion and contraction of the rod produces an E.M. in the coil L2. This e.m.f is applied to the base of the transistor.
What are the different uses of ultrasound?
Ultrasound is used for many reasons, including to:
- View the uterus and ovaries during pregnancy and monitor the developing baby’s health.
- Diagnose gallbladder disease.
- Evaluate blood flow.
- Guide a needle for biopsy or tumor treatment.
- Examine a breast lump.
- Check your thyroid gland.
- Detect genital and prostate problems.