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Lunna [17]
3 years ago
10

Which of the following describes a condition in which an individual would not hear an echo?

Chemistry
2 answers:
egoroff_w [7]3 years ago
4 0

The correct answer is D.

Echo refers to the sound that is heard when a sound wave is reflected back from a surface. An echo sound is made when a sound wave traveled through the air, hit a hard surface and get reflected back. Generally, hard surfaces reflect sound wave while soft surfaces absorb sound waves. Reflected sound waves are used in application of some devices that are used in range and direction finding.

amid [387]3 years ago
4 0
D- A sound wave reaches the ear and the reflected wave reaches the ear less than 0.1 second later.
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