The diagram shows the change in the length X of a thin uniform wire caused by the application of stress F at two different temperatures T1 and T2. The variations shown suggest that :
A
T1>T2
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B
T1<T2
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C
T2=2T1
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D
None of these
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Solution
The correct option is AT1>T2 When same stress is applied at two different temperatures, the increase in length is more at higher temperature. Thus T1>T2.