Which of the following is an intensive property ?

Options

A. Entropy
B. Weight
C. Refractive index
D. Volume

Answer

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

### Step 1: Define Intensive and Extensive Properties
- **Intensive Property**: A property that does not depend on the amount of substance present in the system. Examples include temperature, pressure, density, and refractive index.
- **Extensive Property**: A property that does depend on the amount of substance present. Examples include mass, volume, and weight.

### Step 2: Analyze the Given Options
We have the following options:
1. Entropy
2. Weight
3. Refractive Index
4. Volume

### Step 3: Classify Each Option
- **Entropy**: This is an extensive property because it depends on the amount of substance.
- **Weight**: This is also an extensive property as it changes with the amount of substance.
- **Refractive Index**: This is an intensive property because it does not depend on the amount of substance present.
- **Volume**: This is an extensive property since it increases with the amount of substance.

### Step 4: Conclusion
From the analysis, the only option that qualifies as an intensive property is **Refractive Index**.

### Final Answer
The intensive property among the options given is **Refractive Index**.

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