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Question : A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?

Option 1: Increases

Option 2: Decreases

Option 3: Remain constant

Option 4: Will increase first then decrease


Team Careers360 24th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: Increases


Solution : The correct option is to increase.

The round hole in the centre of a metal plate enlarges when the plate is heated. The following causes account for this:
The molecules along the rim of the hole and all the other component molecules vibrate more when the metal plate is heated. The metal plate expands as a result of the molecules along the rim of the hole.

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