Arrange the following in the increasing order of elasticity : Steel, Copper, Rubber, and Diamond.

Explanation

To arrange the materials Steel, Copper, Rubber, and Diamond in increasing order of elasticity, we need to understand the concept of Young's modulus of elasticity. Young's modulus is a measure of the stiffness of a material and indicates how much it will deform under stress. The higher the Young's modulus, the more elastic the material is.

### Step-by-Step Solution:

1. **Identify the Young's Modulus Values**:
- Rubber has a low Young's modulus, indicating it is very flexible and not very elastic.
- Copper has a moderate Young's modulus, meaning it is more elastic than rubber but less than steel.
- Steel has a high Young's modulus, indicating it is very stiff and elastic.
...