STANDARDPhysics-Properties of Solids and Liquids
STANDARD Physics Elasticity MCQ Question
Type: MCQ-numerical-Medium
Figure shows the strain-stress curve for a given material. The Young’s modulus of the material is
A
5 × 10⁹ N m⁻²
B
5 × 10¹⁰ N m⁻²
C
7.5 × 10⁹ N m⁻²
D
7.5 × 10¹⁰ N m⁻²
Correct Answer
Option D
Detailed Explanation
From the given graph for a stress of 150 × 10⁶ N m⁻² the strain is 0.002. Young's modulus Y = Stress/Strain = 150 × 10⁶ N m⁻² / 0.002 = 7.5 × 10¹⁰ N m⁻².
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