The sound which continues even after its source is cut off, is called
A. Reverberation
B. Echo
C. Intensity of sound
D. Interference
Answer: Option A
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Reverberation: When you clap inside a large empty hall, the sound lingers for a short time.
Echo: When you shout toward a mountain, you hear your voice repeated after a noticeable delay.
So the ans is B.echo