(A) : UV rays are used for sterilizing surgical instruments in hospitals. (R) : IR rays are used for sterilizing surgical instruments in hospitals.

Options

A. Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.
B. Both 'A' and ’R' are true and 'R' is not the correct explanation of 'A
C. A' is true and 'R' is false
D. 'A' is false and R' is true

Answer

To solve the question, we need to evaluate the two statements regarding the use of UV rays and IR rays for sterilizing surgical instruments in hospitals.

### Step-by-Step Solution:

1. **Evaluate Statement A**:
- The statement claims that UV rays are used for sterilizing surgical instruments in hospitals.
- **Explanation**: Ultraviolet (UV) rays have germicidal properties. They can effectively kill bacteria and viruses by damaging their DNA or RNA, making them unable to reproduce. Therefore, UV rays are indeed used for sterilizing surgical instruments.
- **Conclusion**: Statement A is **True**.

2. **Evaluate Statement R**:
- The statement claims that IR (Infrared) rays are used for sterilizing surgical instruments in hospitals.
- **Explanation**: Infrared rays are not used for sterilization. Instead, they are primarily used in applications such as thermography, which helps in detecting temperature variations in the body for diagnostic purposes. They do not possess the necessary properties to kill bacteria or viruses effectively.
- **Conclusion**: Statement R is **False**.

3. **Final Assessment**:
- Since Statement A is true and Statement R is false, the overall conclusion is that only the first statement is correct.

### Final Answer:
- Statement A is True, and Statement R is False. Therefore, the correct option is **3**.