Energy is not carried by

Options

A. transverse progressive wave
B. longitudinal progressive wave
C. stationary wave
D. electromagnetic wave

Answer

To determine which type of wave does not carry energy, we can analyze the characteristics of different types of waves.

### Step-by-step Solution:

1. **Understanding Transverse Progressive Waves**:
- In a transverse wave, particles of the medium move perpendicular to the direction of wave propagation.
- Example: A wave traveling along a string where the string moves up and down while the wave travels horizontally.
- **Conclusion**: Energy is carried in the direction of wave propagation.

2. **Understanding Longitudinal Progressive Waves**:
- In a longitudinal wave, particles of the medium move parallel to the direction of wave propagation.
- Example: Sound waves consist of compressions and rarefactions moving through the air.
- **Conclusion**: Energy is also carried in the direction of wave propagation.

3. **Understanding Stationary Waves**:
- Stationary waves (or standing waves) are formed by the interference of two waves traveling in opposite directions.
- They do not propagate energy from one location to another; instead, they oscillate in place.
- **Conclusion**: Energy is not carried away; it remains stationary.

4. **Understanding Electromagnetic Waves**:
- Electromagnetic waves consist of oscillating electric and magnetic fields that propagate through space.
- Example: Radio waves, microwaves, etc.
- **Conclusion**: Energy is carried in the direction of wave propagation.

5. **Final Conclusion**:
- Among the types of waves analyzed, stationary waves are the only type that does not carry energy from one place to another.
- Therefore, the correct answer is that energy is not carried by stationary waves.

### Answer:
Energy is not carried by stationary waves.