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A metallic rod is bent in the form of ra...

A metallic rod is bent in the form of ractangle as shown in the given figure and heated .Then the gap between the ends P and Q ______

A

increases

B

decreases

C

remains same

D

Cannot be determined

Text Solution

Verified by Experts

The correct Answer is:
A
When the rod is heated, the distance between any adjacent molecules increases, hence, the perimeter of the rectangle and the gap between P and Q increases.
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