COMEDK · Physics · 10. Mechanical Properties of Solids
The stress verses strain graph of four metals A,B,C and D are as shown. Which of the graph represent the metal having greatest Young's modulus?
- A Graph OD
- B Graph OC
- C Graph OB
- D Graph OA
Answer & Solution
Correct Answer
(D) Graph OA
Step-by-step Solution
Detailed explanation
The Young's modulus \(Y\) of a material is defined as the ratio of stress to strain within the elastic limit, which corresponds to the slope of the stress-strain graph. \(Y = \dfrac{\text{stress}}{\text{strain}} = \tan(\theta)\) where \(\theta\) is the angle that the…
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