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29 July, 15:05

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.

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Answers (1)
  1. 29 July, 15:24
    0
    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.
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