Which of the given radiations is having high penetrating power and not affected by electrical and magnetic field ?

Options

A. Alpha rays
B. Beta rays
C. Gamma rays
D. Neutrons

Answer

To solve the question regarding which radiation has high penetrating power and is not affected by electrical and magnetic fields, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Types of Radiation**:
- The common types of radiation include alpha rays, beta rays, neutrons, and gamma rays. Each type has distinct properties.

2. **Analyzing Alpha Rays**:
- Alpha rays consist of helium nuclei (He²⁺) and carry a +2 charge.
- Since they are charged, they will be deflected in the presence of electric and magnetic fields.
- Therefore, alpha rays cannot be the answer.

3. **Analyzing Beta Rays**:
- Beta rays are high-energy, high-speed electrons (or positrons) and carry a -1 charge (or +1 for positrons).
- Like alpha rays, beta rays are also charged and will be deflected by electric and magnetic fields.
- Thus, beta rays are not the answer either.

4. **Analyzing Neutrons**:
- Neutrons are neutral particles and do not carry any charge.
- They have high penetrating power but can be affected by nuclear forces rather than electric or magnetic fields.
- While they are neutral, they do not fit the criteria of being unaffected by external fields in the context of this question.

5. **Analyzing Gamma Rays**:
- Gamma rays are electromagnetic radiation and carry no charge.
- They have very high penetrating power and are not affected by electric or magnetic fields.
- Therefore, gamma rays meet both criteria outlined in the question.

6. **Conclusion**:
- Based on the analysis, the radiation that has high penetrating power and is not affected by electrical and magnetic fields is **gamma rays**.

### Final Answer:
**Gamma rays** are the radiation with high penetrating power and are not affected by electrical and magnetic fields.

---