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प्रश्न
State two applications of ultrasound.
लघु उत्तर
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उत्तर
- Ultrasound is used for drilling holes or making cuts of desired shape in materials like glass.
- Ultrasound is used in surgery to remove cataracts and in the kidneys to break the small stones into fine grains.
- Ultrasonic sound is used to detect flaws in metal castings used in automobile tyres.
- It is used in hospitals to detect defects in certain parts of the body.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
Complete the following sentence:
Ultrasound is of frequency ___________.
Complete the following sentence:
Elephants produce ____________sound.
What is ultrasound?
A man can hear the sound of frequency :
An electromagnetic wave has a time period of 4 × 10-8 s. Calculate its frequency in MHz.
Does SONAR make use of infrasonic sound?
Is the energy carried by the ultrasound very high or very low?
1 hertz is equal to
Ultrasound has frequency of vibration
