Which of the following is an intensive physical property?

• A. Length
• B. Density
• C. Mass
• D. Volume

Answer: (B)

Verified step by step guidance

1. Understand the difference between intensive and extensive properties: Intensive properties do not depend on the amount of substance present, while extensive properties do depend on the amount.
2. Analyze each option: Length, Mass, and Volume are extensive properties because they change when the size or amount of the sample changes.
3. Recall that Density is defined as mass divided by volume, \(\text{Density} = \frac{\text{Mass}}{\text{Volume}}\), and it remains constant regardless of the sample size.
4. Since Density does not depend on the amount of material, it is an intensive property.
5. Therefore, identify Density as the intensive physical property among the given options.