Interference is possible in

Options

A. light waves only
B. sound waves only
C. Both light and sound waves
D. Neither light nor sound waves

Answer

To solve the question "Interference is possible in", we will analyze the nature of interference and the types of waves involved.

### Step-by-Step Solution:

1. **Understanding Interference**:
- Interference is a phenomenon that occurs when two or more waves overlap and combine to form a new wave. This can result in a wave of greater amplitude (constructive interference) or a wave of lesser amplitude (destructive interference).

2. **Types of Waves**:
- There are two main types of waves: transverse waves and longitudinal waves.
- **Transverse Waves**: These waves oscillate perpendicular to the direction of wave propagation. Light waves are an example of transverse waves.
- **Longitudinal Waves**: These waves oscillate parallel to the direction of wave propagation. Sound waves are an example of longitudinal waves.

3. **Interference in Light Waves**:
- Light waves, being transverse waves, can exhibit interference. This is commonly observed in experiments such as the double-slit experiment, where light produces a pattern of bright and dark fringes due to interference.

4. **Interference in Sound Waves**:
- Sound waves, being longitudinal waves, can also exhibit interference. This is observed when two sound sources produce waves that overlap, leading to areas of increased loudness (constructive interference) and decreased loudness (destructive interference).

5. **Conclusion**:
- Since both light waves (transverse) and sound waves (longitudinal) can exhibit interference, the correct answer to the question is that interference is possible in both light and sound waves.

### Final Answer:
Interference is possible in both light and sound waves.