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What Is an Echo and How Does It Work?

Educational infographic titled “What is Echo? – Understanding Reflection of Sound” showing a side-view diagram of a person on the left producing sound waves toward a large vertical wall on the right. The forward waves are labeled “Incident Sound,” and the returning waves are labeled “Reflected Sound.” Between the person and the wall, text reads “Minimum Distance = 17 meters,” with a small stopwatch icon below indicating time delay. The design uses a clean, light blue gradient background and modern vector style.

Have you ever shouted in a large empty hall or near a mountain and heard your voice come back to you? That repeating sound is called an echo. Echoes are a fascinating example of how sound travels and interacts with objects around us. What Is an Echo? An echo is the repetition of a sound … Read more