1.
What is the speed of sound in steel approximately?
A
1500 m/s
B
343 m/s
C
6000 m/s
D
5000 m/s
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What is the speed of sound in steel approximately?
1500 m/s
343 m/s
6000 m/s
5000 m/s
Why is the speed of sound in solids higher than in gases?
Particles in solids are closely packed
Solids are more rigid
Solids are more elastic
All of the mentioned
Which of the following is an example of infrasonic sound?
Whale sounds
Earthquake tremors
Bat communication
Human speech
What principle is used in SONAR for navigation?
Reflection of sound
Diffraction of sound
Interference of sound
Refraction of sound
What happens to sound waves when they hit a hard surface?
They are refracted
They are diffracted
They are absorbed
They are reflected
What is the persistence of sound due to multiple reflections called?
Echo
Diffraction
Reverberation
Refraction
When is an echo heard?
When sound is absorbed
When the reflected sound reaches after 1/10th of a second
When the source of the sound is moving
When the sound is reflected
In which medium is the speed of sound the highest?
Solids
Gases
Liquids
Vacuum
What is the speed of sound in water?
1200 m/s
343 m/s
5000 m/s
1500 m/s
Sound waves are examples of what type of waves?
Electromagnetic waves
Surface waves
Longitudinal waves
Transverse waves
What is the approximate speed of sound in air at room temperature?
400 m/s
343 m/s
330 m/s
220 m/s