Which of the following is the graph showing stress-strain variation for elastomers ?

Options

A.
B.
C.
D.

Answer

To determine which graph shows the stress-strain variation for elastomers, we need to understand the characteristics of elastomers. Here's a step-by-step solution:

### Step 1: Understand Elastomers
Elastomers are materials that exhibit significant elasticity. When a small amount of stress is applied, they undergo a large amount of strain. This means that they can stretch or deform significantly without breaking.

**Hint:** Remember that elastomers are highly elastic materials, meaning they can stretch a lot with little applied stress.

### Step 2: Analyze the Graphs
We will evaluate each graph based on the behavior of elastomers:

1. **First Graph:** Shows a linear relationship where stress and strain increase equally. This indicates a material that behaves like a solid, not an elastomer.
- **Conclusion:** Incorrect graph.

2. **Second Graph:** Shows that a small increase in stress leads to a large increase in strain. This is consistent with the behavior of elastomers.
- **Conclusion:** Potentially correct graph.

3. **Third Graph:** Similar to the first, it shows a less pronounced increase in strain with increasing stress. This suggests a stiffer material.
- **Conclusion:** Incorrect graph.

4. **Fourth Graph:** This graph also shows a linear relationship, indicating it is not representative of elastomers.
- **Conclusion:** Incorrect graph.

### Step 3: Identify the Correct Graph
Based on the analysis, the second graph is the only one that accurately represents the stress-strain relationship for elastomers, where a small increase in stress results in a large increase in strain.

**Final Answer:** The correct graph showing stress-strain variation for elastomers is the **second graph**.

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