Question

Speed of sound is maximum in which among the following?

• A. Gases
• B. Vacuum
• C. Liquids
• D. Solids

Answer 1

The correct option is D

Solids

Explanation of correct option

1. Sound is a longitudinal wave.
2. It propagates by vibrating the particles present in the medium.
3. So the speed of sound depends on the density of the medium through which the sound wave is travelling.
4. The speed of the sound is directly proportional to the density of the medium
5. Since the density of the solid is greater than the density of liquid, gas and vacuum.
6. So the speed of the sound is maximum in solid.

Hence, option D is correct.