Choose the correct alternative. Electromagnetic wave does not carry

Options

A. energy
B. charge
C. information
D. momentum

Answer

To solve the question, "Electromagnetic wave does not carry," we will analyze each option provided and determine which one is correct.

### Step-by-Step Solution:

1. **Understanding Electromagnetic Waves**:
- Electromagnetic waves consist of oscillating electric and magnetic fields that propagate through space. They travel at the speed of light and do not require a medium.

2. **Analyzing the Options**:
- **Option 1: Energy**:
- Electromagnetic waves carry energy due to the presence of electric and magnetic fields. The energy density of the electric field is given by \( \frac{1}{2} \epsilon_0 E^2 \) and for the magnetic field, it is \( \frac{1}{2} \frac{B^2}{\mu_0} \). Therefore, this option is incorrect.

- **Option 2: Charge**:
- Electromagnetic waves do not carry charge. If they did, we would observe charge accumulation on surfaces when these waves interact with them. This is not the case; hence, this option is correct.

- **Option 3: Information**:
- Electromagnetic waves can carry information. For example, radio waves transmit information for communication devices like radios and cell phones. Thus, this option is incorrect.

- **Option 4: Momentum**:
- Electromagnetic waves do carry momentum, which can be described by de Broglie's equation \( p = \frac{h}{\lambda} \). This means that they can exert pressure and thus carry momentum. Therefore, this option is also incorrect.

3. **Conclusion**:
- Based on the analysis, the correct answer to the question "Electromagnetic wave does not carry" is **charge**.

### Final Answer:
Electromagnetic waves do not carry **charge**.