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 "Which of the given radiations is having high penetrating power and not affected by electrical and magnetic field?", we need to analyze the properties of the different types of radiation mentioned: Alpha rays, Beta rays, Gamma rays, and Neutrons.

### Step-by-Step Solution:

1. **Identify the Types of Radiation**:
- Alpha Rays
- Beta Rays
- Gamma Rays
- Neutrons

2. **Analyze Alpha Rays**:
- Alpha rays are composed of alpha particles which have a charge of +2.
- They are positively charged and are affected by electric and magnetic fields. Their path bends in these fields.
- **Conclusion**: Alpha rays do not have high penetrating power and are affected by electric and magnetic fields.

3. **Analyze Beta Rays**:
- Beta rays consist of beta particles which have a charge of -1.
- They are negatively charged and are also affected by electric and magnetic fields. Their path bends more than that of alpha particles.
- **Conclusion**: Beta rays do not have high penetrating power compared to gamma rays and are affected by electric and magnetic fields.

4. **Analyze Gamma Rays**:
- Gamma rays are high-energy electromagnetic radiation with zero electric charge.
- They are not affected by electric or magnetic fields due to their lack of charge.
- **Conclusion**: Gamma rays have high penetrating power and are not affected by electric and magnetic fields.

5. **Analyze Neutrons**:
- Neutrons are neutral subatomic particles found in the nucleus of an atom.
- They have no charge and are not affected by electric or magnetic fields.
- However, neutrons do not have a term like penetrating power associated with them in the same way as gamma rays.
- **Conclusion**: While neutrons are not affected by electric and magnetic fields, they do not have a defined penetrating power like gamma rays.

6. **Final Conclusion**:
- Among the options provided, **Gamma rays** have the highest penetrating power and are not affected by electric and magnetic fields.
- Therefore, the correct answer is **Gamma rays**.

### Answer:
**Gamma Rays** (Option 3)