Reflection (Echo) MCQs Quiz Online PDF Download eBook
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MCQs on Reflection (Echo) PDF Download eBook
MCQ: The sensation of sound persists in our brain for about
MCQ: Echoes maybe heard more than once due to
- multiple reflections
- single time reflection
- diffraction of waves
MCQ: The reflection of sound is called
MCQ: The total distance covered by a sound wave from the generation point to reflecting surface and back should be