Inside a gas, sound transmission is possible for

Options

A. longitudinal waves only
B. transverse waves only
C. neither longitudinal waves nor transverse waves
D. both longitudinal and transverse waves

Answer

To solve the question "Inside a gas, sound transmission is possible for?", we need to analyze the types of waves and their propagation in a gas medium.

### Step-by-Step Solution:

1. **Understanding Wave Types**:
- There are two main types of mechanical waves: longitudinal waves and transverse waves.
- In a longitudinal wave, particles of the medium vibrate in the same direction as the wave propagates.
- In a transverse wave, particles vibrate perpendicular to the direction of wave propagation.

2. **Longitudinal Waves in Gases**:
- Sound is a type of longitudinal wave. In gases, when a sound wave travels, the gas particles oscillate back and forth in the same direction as the wave moves.
- This oscillation causes regions of compression (where particles are close together) and rarefaction (where particles are spread apart) to form and propagate through the gas.

3. **Transverse Waves in Gases**:
- In contrast, for a transverse wave, particles would need to move up and down while the wave moves horizontally.
- However, in a gas, the particles are not closely packed enough to transfer energy in the perpendicular direction. The lack of strong intermolecular forces means that the energy cannot be effectively transferred sideways.

4. **Conclusion**:
- Since sound waves in gases are longitudinal and can propagate through the oscillation of gas particles in the same direction as the wave, we conclude that sound transmission in a gas is possible only for longitudinal waves.

5. **Final Answer**:
- Inside a gas, wave transmission is possible for **longitudinal waves only**.