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For hearing the loudest ticking sound heard by the ear, find the angle x in the Fig.12.4.
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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