A square is cut out of a copper sheet. A circular hole is drilled in the square. The square is heateduniformly. As a result, the diameter of the hole

increases

decreases

stays the same

The answer depends on the size of the hole.

increases

Explanation:

When an object is heated, it expands.

When the object expands linearly, it is called linear expansion.

When the area of the object increases, it is called areal expansion.

When a hole is heated, then the area of hole increases, and then the diameter of hole also increases.