Question

Which of the following is true about the speed of sound?

• A. It decreases with increase in temperature.
• B. It is more in solid state as compared to the gaseous state.
• C. It is the same in liquid and gaseous state.
• D. It is the same in solid and gaseous state.

Answer 1

The correct option is B It is more in solid state as compared to the gaseous state.

Sound wave travels fastest in solids, faster in liquids and slower in gases.
Temperature is the average kinetic energy of all the particles of a body. When the temperature increases for a given state of matter, the movement of particles increases and so does the speed of sound.