HARD
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Which surface is most effective for sound reflection?

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Important Questions on Acoustics

HARD
Which type of surface absorbs sound the most?
EASY
What is the speed of sound in air at room temperature?
EASY
In a longitudinal wave, what is the name given to the region where the particles are farthest apart?
HARD
What is the role of reflection of sound in SONAR?
HARD
Why do we not hear echoes in small rooms?
HARD
Show by an experiment that sound can be reflected like light.
MEDIUM
What happens to sound when it strikes a hard and smooth surface?
EASY
Explain why the ceilings of concert halls are curved.
HARD
How can echo formation be reduced in a room?
EASY
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
HARD
Which phenomenon makes it possible to hear sounds in a canyon?
EASY
Which principle explains the reflection of sound?
EASY
Why do we hold our palm in a curved fashion near our ear to catch distant sound ?
HARD
What is the effect of reverberation in an auditorium?
MEDIUM
What is mean by reflection of sound? Explain reflection at curved surfaces.
HARD
Which property of sound is essential for echo formation?
EASY
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
HARD
What is mean by reflection of sound? Explain reflection at the boundary of a denser medium.
EASY
A sound wave travels in the form of compression and rarefaction.
EASY
What is the reflection of sound called when it reaches the ear after 0.1 seconds?