Polishing a surface helps increase

Options

A. conduction
B. convection
C. radiation
D. reflection

Answer

**Step-by-Step Solution:**

1. **Understanding the Concept of Polishing:**
- Polishing a surface refers to the process of making it smooth and shiny. This is often done to reduce surface roughness.

2. **Effect of Polishing on Friction:**
- A polished surface has reduced friction compared to a rough surface. This means that when two objects slide over each other, they will encounter less resistance on a polished surface.

3. **Heat Absorption and Reflection:**
- A polished surface is generally a poor absorber of heat. This means that it does not take in heat energy effectively.
- Instead, when heat is incident on a polished surface, most of it is reflected rather than absorbed.

4. **Law of Reflection:**
- According to the law of reflection, when light or heat rays hit a polished surface, they reflect off at the same angle at which they arrive. This means that the angle of incidence is equal to the angle of reflection.

5. **Conclusion:**
- Therefore, polishing a surface increases its ability to reflect heat rather than absorb it. The correct answer to the question is that polishing a surface helps to increase reflection.

**Final Answer:**
Polishing a surface helps increase reflection.

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