It is observed that:
gamma rays are not deflected by either an electric or a magnetic field. Explain observations.

Explanation

### Step-by-Step Solution:

1. **Understanding Gamma Rays**:
Gamma rays are a form of electromagnetic radiation, similar to X-rays but with higher energy. They are part of the electromagnetic spectrum and travel at the speed of light.

**Hint**: Remember that gamma rays are a type of electromagnetic wave.

2. **Nature of Charge**:
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