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

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