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Chapter 10 Sounds Waves: Characteristics and Applications - Part 4

What is an echo?

Type: MCQ • Marks: 1
What is an echo?
Options
A. Sound in vacuum
B. Sound that disappears
C. Reflected sound heard after original sound
D. Sound with no vibration
Explanation
An echo is sound reflected from a surface and heard separately.
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Class 9th Science (MCQ)

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