How much should minimum distance be between the source of sound and reflecting surface, so that an echo can be heard clearly?

🎲 Try a Random Question  |  Total Questions in Quiz: 44  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
General Physics Previously Asked Questions: Sound — practice the complete quiz, review flashcards, or try a random question.


How much should minimum distance be between the source of sound and reflecting surface, so that an echo can be heard clearly?