Photons are

Options

A. electrically neutral and not deflected by electric or magnetic field.
B. electrically neutral and deflected by magnetic field.
C. electrically charged and not deflected by electric or magnetic field.
D. electrically charged and not deflected by electric field

Answer

### Step-by-Step Solution:

1. **Definition of Photons**:
- Photons are defined as the fundamental particles of light and other forms of electromagnetic radiation. They are the smallest discrete amount or "quantum" of electromagnetic energy.

2. **Properties of Photons**:
- **Massless**: Photons do not have mass. This allows them to travel at the speed of light in a vacuum.
- **Chargeless**: Photons carry no electric charge, meaning they do not interact with electric fields in the same way charged particles do.

3. **Nature of Photons**:
- Photons exist as packets of energy. This means they can be thought of as discrete units of electromagnetic radiation, which includes visible light, radio waves, X-rays, etc.

4. **Behavior in Electric and Magnetic Fields**:
- Since photons are electrically neutral (chargeless), they are not deflected by electric or magnetic fields. Charged particles, like electrons and protons, would experience a force in these fields and change their path, but photons will continue in a straight line.

5. **Conclusion**:
- Based on the properties and behavior of photons, we can conclude that they are electrically neutral and cannot be deflected by electric and magnetic fields.

### Final Answer:
Photons are massless, chargeless packets of electromagnetic radiation that are electrically neutral and cannot be deflected by electric and magnetic fields.

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