Stainless steel pans are usually provided with copper bottoms. The reason for this could be that

Options

A. copper bottom makes the pan more durable.
B. such pans appear colourful.
C. copper is a better conductor of heat than the stainless steel.
D. copper is easier to clean than the stainless steel

Explanation

**Step-by-Step Solution:**

1. **Understanding the Materials**:
- Stainless steel is a common material used for cookware due to its durability and resistance to corrosion.
- Copper is another metal known for its excellent thermal conductivity.

2. **Identifying the Purpose of Copper Bottoms**:
- The primary purpose of adding a copper bottom to stainless steel pans is to enhance heat conduction.

3. **Comparing Conductivity**:
- Copper is a better conductor of heat compared to stainless steel. This means that heat can transfer more efficiently through copper.

4. **Effect on Cooking**:
- When heating a pan with a copper bottom, the heat from the stove is quickly transferred to the copper.
- This efficient heat transfer allows for faster and more even cooking, as the heat spreads quickly across the bottom of the pan.

5. **Conclusion**:
- Therefore, the reason stainless steel pans have copper bottoms is that copper is a better conductor of heat than stainless steel, which improves the cooking performance of the pan.

**Final Answer**: Stainless steel pans are usually provided with copper bottoms because copper is a better conductor of heat than stainless steel.

---