Q. Echo is produced due to

  • (A) Reflection of sound
  • (B) Refraction of sound
  • (C) Resonance
  • (D) None of the above
✅ Correct Answer: (A) Reflection of sound

Published by Kartik Sharma ⭐ 8.52K Points at 06-Jun-2022 10:32 pm in Physics

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