The velocity of sound is maximum in -

Options

A. liquids
B. solids
C. gases
D. Cannot be determined

Explanation

To determine in which medium the velocity of sound is maximum, we can analyze the properties of solids, liquids, and gases.

### Step-by-Step Solution:

1. **Understanding Sound**: Sound is a mechanical wave that requires a medium (solid, liquid, or gas) to propagate.

2. **Types of Medium**: The three types of mediums through which sound can travel are solids, liquids, and gases.

3. **Particle Arrangement**:
- In solids, particles are closely packed together.
- In liquids, particles are less densely packed compared to solids but are still closer than in gases.
- In gases, particles are far apart and move randomly.

4. **Vibration Transmission**: Sound travels through these mediums by causing particles to vibrate.
- In solids, when one particle vibrates, it quickly transfers this vibration to neighboring particles due to their close proximity. This results in faster transmission of sound.
- In liquids, the particles are further apart than in solids, which means it takes slightly longer for the vibration to pass from one particle to another.
- In gases, the particles are the most spread out, which leads to the slowest transmission of sound as the vibrations take longer to reach neighboring particles.

5. **Conclusion**: Since sound travels fastest in solids due to the close packing of particles allowing for rapid transmission of vibrations, we conclude that the velocity of sound is maximum in solids.

### Final Answer:
The velocity of sound is maximum in **solids**.

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