Name the radiation which can be detected by (a) a thermopile (b) a solution of silver chloride.

Answer

To answer the question, we need to identify the types of radiation that can be detected by a thermopile and a solution of silver chloride.

### Step-by-Step Solution:

1. **Identify the radiation detected by a thermopile:**
- A thermopile is an instrument that converts thermal energy (heat) into electrical energy. It is sensitive to infrared radiation.
- **Conclusion:** The radiation that can be detected by a thermopile is **infrared radiation**.

2. **Identify the radiation detected by a solution of silver chloride:**
- Silver chloride is a photosensitive compound that undergoes a chemical change when exposed to light. Specifically, it darkens when exposed to ultraviolet radiation.
- **Conclusion:** The radiation that can be detected by a solution of silver chloride is **ultraviolet radiation**.

### Final Answer:
(a) Infrared radiation can be detected by a thermopile.
(b) Ultraviolet radiation can be detected by a solution of silver chloride.

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