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Як відбувається відлуння?

Дзеркала будуть текти зображення і відправити світло назад. Стіни також відправити голоси назад. Якщо ви стоїте трохи далі від високих стіні або великий Скеля, ви почуєте ваш голос обертається назад через кілька секунд.

Якщо звукова хвиля зустрічається з стіною або високою і широкої поверхні скелі, вона обертається назад до його джерела. Ось як відбувається відлуння. Якщо витягнутий звук короткий і звукові хвилі досягають батареї, як звичайно, відлуння чув ясно. Сліди звуку залишаються у вухо за 1/10 секунди.

Оскільки швидкість звучання в повітрі становить 340 метрів в секунду, то відстань між джерелом звуку і батареєю буде луна повинна бути не менше 17 метрів.

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