The image shows reflection of sound by a polished wall. Based on the image, what can be inferred about how sound reflects off the polished wall?
What is meant by the reflection of sound waves?
Describe an activity to study the reflection of sound.
A man stands between two cliffs and produces a sharp sound. He hears two successive echoes after 0.5 s and 2.5 s. Calculate the distance between the cliffs. Given that speed of sound in air is 332 m s⁻¹.
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