Which rays contain (positive) charged particle ?

Options

A. `alpha`-rays
B. `beta`-rays
C. `gamma`-rays
D. X-rays

Answer

To determine which rays contain positively charged particles, we can analyze the different types of rays mentioned in the context of nuclear physics.

### Step-by-Step Solution:

1. **Identify the Types of Rays**:
- The question asks about rays that contain positively charged particles. The types of rays we will consider are alpha rays, beta rays, and gamma rays.

2. **Analyze Alpha Rays**:
- Alpha rays consist of alpha particles. An alpha particle is made up of 2 protons and 2 neutrons, which is essentially the nucleus of a helium atom. Since protons carry a positive charge, alpha particles are positively charged.

3. **Analyze Beta Rays**:
- Beta rays are composed of fast-moving electrons. Electrons have a negative charge. Therefore, beta rays do not contain positively charged particles.

4. **Analyze Gamma Rays**:
- Gamma rays are a form of electromagnetic radiation and are neutral. They do not contain any charged particles, whether positive or negative.

5. **Conclusion**:
- Based on the analysis, the only type of ray that contains positively charged particles is alpha rays.

### Final Answer:
**Alpha rays contain positively charged particles.**

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