Q. Echoes are produced due to

  • (A) reflection of sound
  • (B) diffraction of sound
  • (C) refraction of sound
  • (D) polarisation of sound
✅ Correct Answer: (A) reflection of sound

Published by Ruchi Sharma ⭐ 9.87K Points at 08-Jan-2022 08:27 am in Physics

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