A: The nature of the characteristic X -rays does not depend on accelerating potential.
R: X- rays are electromagnetic radiation.

Options

A. If both Assertion & Reason are true and the reason is the correct explantion of the assertion , then mark (1)
B. if both Assertion & Reason are true but the reason is not the correct explantion of the assertion , then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To analyze the given statements regarding characteristic X-rays, we will break down the claims and provide a step-by-step solution.

### Step-by-Step Solution:

1. **Understanding Characteristic X-rays**:
- Characteristic X-rays are produced when high-energy electrons collide with a metal target (anode) and knock out inner-shell electrons. When electrons from higher energy levels fall into these lower energy levels, they emit X-rays with specific energies.
- This process is independent of the accelerating potential applied to the electrons.

2. **Statement A**: "The nature of the characteristic X-rays does not depend on accelerating potential."
- This statement is **True**. The energy levels of the electrons in the atom determine the energy of the emitted X-rays, not the accelerating potential. The accelerating potential affects the intensity and quantity of X-rays produced but does not change their characteristic nature.

3. **Statement R**: "X-rays are electromagnetic radiation."
- This statement is also **True**. X-rays are indeed a form of electromagnetic radiation, similar to visible light, but with much higher energy and shorter wavelengths.

4. **Conclusion**:
- Both statements A and R are true. However, the reasoning provided in statement R does not directly explain why statement A is true. Therefore, while both statements are correct, the reasoning in R does not justify A.

### Final Answer:
- Statement A is true, and statement R is true, but R does not explain A.