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Vibrations and Sound waves Learning App Download - Class 7 Science Apps (iOS & Android)

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Vibrations and Sound waves MCQs App Download & e-Book PDF - 1205

MCQ: 1205

The parts of sound waves where air pressure is lesser, is known as

  1. compression
  2. rarefaction
  3. consolation
  4. expansion

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Vibrations and Sound waves Apps (Android & iOS)

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