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CBSE
Class 9
Science
Exploration
Sound Waves: Characteristics a...
Question Bank

Why can we not hear an echo wh...

Single Answer MCQ
Q-00172247

Why can we not hear an echo when we are very close to a reflecting surface?

1

Sound is absorbed

2

The walls vibrate

3

Sounds merge before the brain perceives them

4

The surface is too soft

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