Which of the following statements is/are true/false about the speed of sound in different media at 25° C?

  1. In oxygen gas, the speed of sound is 316 m/min.
  2. In water (distilled), the speed of sound is 1498 m/min.
A : Only B is true
B : Only A is true
C : Neither A nor B are true
D : Both A and B are true
General Science
Physics
Heat and Transfer
Answer
Option 3 : Neither A nor B are true
Explanation

The correct option is Neither A nor B are true

Concept: 

  • Speed of Sound in a Medium: The speed of sound depends on the properties of the medium through which it travels its temperature and elasticity.
  • The Sound wave is a type of longitudinal mechanical wave which propagates only through a medium by vibrating the molecules of its particle. 
    • Solid having molecules compact together. So usually, the speed of sound is more in Solids compared to liquids and more in liquid than gases. 

Explanation:

Speed of sound in different media at 25 ºC
State Medium Speed of sound (m/s)
Solid Solids Aluminium 6420
Nickel 6040
Steel 5960
Iron 5950
Brass 4700
Glass (Flint) 3980
liquid Liquids Water (Sea) 1531
Water (distilled) 1498
Ethanol 1207 1207
Methanol 1103
gas Gases Hydrogen 1284
Helium 965
Air 346
Oxygen 316
Sulfur dioxide 213

https://ncert.nic.in/ncerts/l/iesc112.pdf

  • Sound speed is the distance a sound wave travels per unit of time, as it propagates across an elastic medium.
  • Here we see the unit is m/s (meter per second) and NOT in m/min (meter per minute)

Therefore both the statement are false.