Question

"The velocity of sound is maximum in:

• A. solid
• B. gas
• C. liquid
• D. vacuum

Answer 1

Answer:

A. solid

• Velocity of sound is directly proportional to the density of the medium.
• So the medium having maximum density will have maximum speed of sound
• Speed of sound in a medium depends upon the following factors-
• • Closeness of molecules.
  • Density.
  1. Since molecules are tightly closed in solids, as compared to liquids and gases, Sound will have a maximum speed in it.
  2. Molecules of liquids are loosely packed as compared to solids, so the sound will have a lesser speed in liquids as compared to solids.
  3. Molecules of gases are more loosely packed as compared to solids and liquids both, so the sound will have a lesser speed in gases as compared to both solids and liquids.