Which is an intensive property?

Options

A. 1.Volume
B. 2.Mass
C. 3.Refractive index
D. 4.Weight

Explanation

To determine which of the given properties is an intensive property, we need to understand the concept of intensive and extensive properties.

### Step-by-Step Solution:

1. **Define Intensive and Extensive Properties**:
- Intensive properties are those that do not depend on the amount of substance present. Examples include temperature, pressure, density, and refractive index.
- Extensive properties depend on the amount of substance. Examples include mass, volume, and total energy.

2. **Analyze the Given Properties**:
- Let's consider the properties mentioned in the question:
- Mass: This is an extensive property because it depends on the quantity of matter.
- Volume: This is also an extensive property as it depends on the amount of substance.
- Weight: This is an extensive property since it is directly proportional to mass (Weight = mass × gravitational acceleration).
- Refractive Index: This is an intensive property because it does not depend on the quantity of matter.

3. **Identify the Correct Answer**:
- Among the properties listed, the refractive index is the only one that does not depend on the quantity of matter. Therefore, it qualifies as an intensive property.

4. **Conclusion**:
- The correct answer to the question "Which is an intensive property?" is the refractive index.

### Final Answer:
The refractive index is an intensive property.

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