A-LevelPhysicsDeformation of solids9702/12 · May/June 2021 · Q191 Mark
A steel bar of circular cross-section is under tension T, as shown. [Figure 19.1] The diameter of the wide portion is double the diameter of the narrow portion. What is the value of stress in the wide portion / stress in the narrow portion?
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A0.25
B0.50
C2.0
D4.0
✓ Correct answer
A: 0.25
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