Question
Question: There is a hole in the middle of a copper plate. When heating the plate, diameter of hole would...
There is a hole in the middle of a copper plate. When heating the plate, diameter of hole would
A
(a) Always increase
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(b) Always decrease
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(c) Remains the same
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(d) None of these
Explanation
Solution
(a) A metal expands on heating. Therefore, diameter of the hole increases always.