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1. |
A thin steel ring of inner diameter 40 cm and cross- sectional area \[1 m{{m}^{2}}\], is heated until it easily slides on a rigid cylinder of diameter 40.05 cm. [For steel,\[\alpha =1{{0}^{-5}}/{}^\circ C, Y= 200 GPa\]] When the ring cools down, the tension in the ring will be: |
A. | 1000 N |
B. | 500 N |
C. | 250 N |
D. | 100 N |
Answer» D. 100 N | |