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Echo of Sound MCQ App Download - Class 10 Physics Apps (iOS & Android)

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Echo of Sound MCQ App Download & e-Book PDF - 507

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MCQ: 507

For hearing distinct echoes, the minimum distance of the obstacle from the source of sound must be

  1. double to this distance
  2. equal to this distance
  3. half of this distance
  4. one third to this distance
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The App: Echo of Sound MCQ App to study Echo of Sound Notes, 10th Grade Physics MCQ App, and O Level Physics MCQ App. The "10th Grade Physics" App to Free Download Echo of Sound MCQ Apps (Android & iOS) for high school graduation certificate. Download App Store & Play Store study Apps with all functionalities to study online classes courses.

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