Which of the following statements is/are true of the speed of sound in different media at 25°C? A. In Aluminium, the speed of sound is 6220 m/s. B. In Nickel speed of sound 6040 m/s.
Which of the following statements is/are true of the speed of sound in different media at 25°C? A. In Aluminium, the speed of sound is 6220 m/s. B. In Nickel speed of sound 6040 m/s. Correct Answer Only B is true
The correct answer is option 1.
- In Nickel speed of sound 6040 m/s.
- In Aluminium, the speed of sound is 6420 m/s.
Important Points
Speed of Sound in Different Media:
- The speed of sound in the air is 331 m/s–1 at 0ºC and 344 m/s–1 at 22ºC.
- It depends on the type of the medium through which it is traveling.
- It depends on the temperature and pressure of that medium.
- Speed of sound Decrease- when it passes from the solid to the gaseous state of a given medium.
- Speed of sound Increase- In any medium, when temperature and humidity increase.
- Speed of Sound- Solid > Liquid > Gases
Key Points
Speed of sound in different media at 25ºC
|
State |
Substance |
Speed in m/s |
|
Solids |
Aluminum |
6420 |
|
Nickel |
6040 |
|
|
Steel |
5960 |
|
|
Iron |
5950 |
|
|
Brass |
4700 |
|
|
Glass (flint) |
3980 |
|
|
Liquid |
Water (sea) |
1531 |
|
Water (distilled) |
1498 |
|
|
Ethanol |
1207 |
|
|
Methanol |
1103 |
|
|
Gases |
Hydrogen |
1284 |
|
Helium |
965 |
|
|
Air |
346 |
|
|
Oxygen |
316 |
|
|
Sulfur Dioxide |
213 |
মোঃ আরিফুল ইসলাম
Feb 20, 2025