What is the approximate speed of sound in distilled water at 25°C (77°F)?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 1498 m/s
1. Sound is a type of longitudinal, mechanical wave.
2. They need a medium to propagate and will not travel through a vacuum. Sound travels at different speed in different media.
3. The speed of sound is determined by the density (ρ) and compressibility (K) of the medium.
The speed of sound in a medium can be determined by the equation:
⇒ v = (Kρ)-1/2
On putting the values, Speed of sound in distilled water at 25°C comes out to be 1498 m/s.