HARD
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Which type of surface absorbs sound the most?

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Important Questions on Acoustics

HARD
What is the role of reflection of sound in SONAR?
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How does reflection of sound differ from refraction of sound?
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What is the primary use of sound reflection in architecture?
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How can sound waves be directed to specific areas?
EASY
What is the speed of sound in air at room temperature?
HARD
What is reverberation?
HARD
Which phenomenon makes it possible to hear sounds in a canyon?
EASY
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
EASY
Which principle explains the reflection of sound?
EASY
What is the minimum distance required for an echo to be heard?
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How can echo formation be reduced in a room?
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Why do we not hear echoes in small rooms?
MEDIUM
What happens to sound when it strikes a hard and smooth surface?
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What is the purpose of using concave surfaces in sound reflectors?
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Which property of sound is essential for echo formation?
HARD
Which surface is most effective for sound reflection?
EASY
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
EASY
What is the reflection of sound called when it reaches the ear after 0.1 seconds?
HARD
Which device uses sound reflection to measure depth?
HARD
Which phenomenon is used in the working of a stethoscope?