AP EAMCET202124 Aug 2021Evening ShiftPhysicsMechanical Properties of SolidsActual
Find the Young's modulus of the wire whose stress-strain curve is as shown in the following figure
Options
- A8 10¹¹ Nm ⁻²
- B24 10¹¹ Nm ⁻²
- C10 10¹¹ Nm ⁻²
- D2 10¹¹ Nm ⁻²
Correct answer
D. 2 10¹¹ Nm ⁻²
Step-by-step solution
We know that, stress =Y strain (Under proportional limit) Now Young's modulus, Y= Stress Strain = (8-0) 10^7 (4-0) 10⁻⁴ =2 10¹¹ Nm ⁻²