Physics
Grade-8
Easy

Question

Kidney stones can be cured using ________.

  1. Ultra sound
  2. Infra sound
  3. Audible sound
  4. None

hintHint:

Higher frequencies.

The correct answer is: Ultra sound


    • Ultrasonic waves are used to break kidney stones.
    • This is known as Lithotripsy.
    • So, the correct option is a.

    • High energy sound waves are passed through the body without injuring it and break the stone into small pieces.
    • This technique is known as lithotripsy.

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