Which radiations are used in treatment of muscles ache?

Options

A. Ultraviolet
B. Infrared
C. microwaves
D. X-rays

Explanation

To determine which radiations are used in the treatment of muscle ache, we can analyze the options provided:

1. **Ultraviolet (UV) Rays**:
- UV rays are primarily known for their ability to kill microorganisms, such as bacteria. They are not typically used for treating muscle aches. Therefore, this option is incorrect.

2. **Infrared (IR) Rays**:
- Infrared radiation is known for its ability to penetrate the skin and provide warmth. This warming effect can help relax muscles and alleviate pain, making infrared rays a common choice for treating muscle aches. Thus, this option is correct.

3. **Microwaves**:
- Microwaves are primarily used in communication technologies and for cooking food in microwave ovens. They are not used for treating muscle aches, so this option is also incorrect.

4. **X-rays**:
- X-rays are used primarily for imaging purposes, such as taking pictures of bones. They are not used for treating muscle aches, making this option incorrect as well.

Based on this analysis, the correct answer is **Infrared Rays**.

### Final Answer:
**Infrared Rays (Option B) are used in the treatment of muscle ache.**

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