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QJEEAdv15Ph4ecc: JEE Advanced 2015 Physics - Class 11 JEEAdv15Ph4ecc Solution: In plotting stress versus strain curves for two materials P and …
In plotting stress versus strain curves for two materials P and Q, a student by mistake puts strain on the y-axis and stress on the x-axis as shown in the figure. Then, the correct statements is/are
Multiple Choice Options
- A P has more tensile strength than Q
- B P is more ductile than Q
- C P is more brittle than Q
- D The Young's modulus of P is more than that of Q
Step-by-Step Verified Solution
We know,
According to graph,
Slope of curve
(Slope)P > (Slope)Q
P has more tensile strength than Q as it sustains more stress after elastic limit.
There is large deformation between the elastic limit and the fracture point for material P as compared to material Q. Hence, P is more ductile than Q.
After the elastic limit, Q breaks soon as compared to P. So, Q is more brittle than P.