SELECT * FROM question_mgmt as q WHERE id=4256 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=192 and ex_no='11' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 9th science Sound how is ultrasound used for cleaning

Question:

How is ultrasound used for cleaning?

Answer:

The objects to be cleansed are put in a cleaning solution and ultrasonic sound waves are passed through that solution. The high frequency ultrasonic waves are capable of removing the dirt from the objects very easily.


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  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

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