Which of the radioactive radiations :
are deflected by an electric field ?

Explanation

To solve the question regarding which radioactive radiations are deflected by an electric field, we need to analyze the properties of the three main types of radioactive emissions: alpha particles, beta particles, and gamma rays.

### Step-by-Step Solution:

1. **Identify the Types of Radioactive Radiation**:
- The three main types of radioactive radiation are:
- Alpha particles (α)
- Beta particles (β)
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