The bombardent of high energy electrons on a metal target of high atomic number produces

Options

A. X-rays
B. `gamma`-ray
C. UV ray
D. IR-rays

Answer

To solve the question regarding what is produced when high-energy electrons bombard a metal target of high atomic number, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Process**: When high-energy electrons collide with a metal target, they can transfer energy to the atoms in the target. This interaction is significant when the target has a high atomic number.

2. **Identify the Type of Radiation Produced**: The primary outcome of this interaction is the emission of electromagnetic radiation. The specific type of radiation produced is dependent on the energy levels involved in the interaction.

3. **Consider the Options**: We have four options:
- Option 1: X-rays
- Option 2: Gamma rays
- Option 3: UV rays
- Option 4: Infrared rays

4. **Analyze Each Option**:
- **X-rays**: These are produced when high-energy electrons are decelerated upon hitting a metal target, leading to the emission of energy in the form of X-rays.
- **Gamma rays**: These are typically produced in nuclear reactions and are not the result of electron bombardment.
- **UV rays**: These are lower in energy compared to X-rays and are not produced in significant amounts from high-energy electron bombardment.
- **Infrared rays**: These are even lower in energy and are not produced in this context.

5. **Conclusion**: Based on the analysis, the correct answer is that the bombardment of high-energy electrons on a metal target of high atomic number produces **X-rays**.

### Final Answer:
The bombardment of high-energy electrons on a metal target of high atomic number produces **X-rays**.

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