SELECT * FROM question_mgmt as q WHERE id=4239 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 what is sound and how is it produced

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What is sound and how is it produced?

Answer:

Sound is defined as vibration that travels through the air or another medium as an audible mechanical wave. This creates a disturbance in the medium. It is produced from a vibrating body. This disturbance, when it reaches the ear, produces sound.


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  • Answered by Ekta Mehta
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  • Answered by Ekta Mehta
  • 4 months ago

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

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